Edited by Aziza Francienne · B2C Marketing Manager
If you're researching international schools in Thailand offering Cambridge Lower Secondary, this page lists every school we know of and lets you sort, filter and compare them — without school marketing in the way. The most common curriculum is Cambridge (Secondary), taught by 27 of the schools below. Annual tuition spans roughly 79,000–821,100 THB, with the average sitting around 349,624. Schools range from new openings to long-established names like Amnuay Silpa School (opened 1926).
Compare 27 Cambridge Lower Secondary international schools in Thailand. Filter by curriculum, fees (average THB 349,624), location, and more to find the right international school now.
Kajonkiet International School Phuket (KIS), founded around 2011, is a co‑educational day school for ages 2–18 located in Phuket’s Kathu valley. Its British Curriculum, from EYFS through IGCSE and A‑Levels, is delivered entirely in English. Set on 15 Rai of landscaped countryside, KIS features dedicated music and sports facilities, nurturing both athletic and creative passions. The school supports students with EAL and SEN programs. International languages taught include Thai, Chinese, and Japanese. Daily transport services cover the island. Strengths lie in academic enrichment, sports, and arts, evidenced by a parent-reported music scholar platform and robust sports offerings.
Singapore International School of Bangkok (SISB) was established in 2001 and offers a multilingual education across several campuses in Thailand. The school combines the UK’s EYFS, the Singapore curriculum, Cambridge IGCSEs and A Levels, and the IB Diploma Programme at the senior level. With instruction in English, Chinese, and Thai, SISB supports a diverse student body and provides well-equipped facilities including science labs, libraries, sports complexes, swimming pools, and boarding accommodations at its main campus.
PBISS International School on Koh Samui began in 2005 and teaches students aged 2 to 18, following the Cambridge International Standards blended with a STEM+ approach, meaning science, technology, engineering, and math are built into every stage. The campus hosts a STEM+ Innovation Centre, a hub where students work on hands-on projects like 3D printing, laser cutting, and vinyl crafting, and even participate in events like the Theme Park Challenge alongside a STEM Expo. In the youngest years, children engage in activities such as robotics, hydroponic gardening, and even a STEM Farm, alongside learning with tools like balance bikes and Lego tables. Secondary learners move into Cambridge IGCSE and A-Level courses under a “Learning to Mastery” philosophy that emphasises thinking and creation, not mere memorisation. Located in Chaweng Noi on Koh Samui, the school brings together international education and a distinctively hands-on, STEM-infused learning experience.
Glory Singapore International School - Ramintra Campus, opened in 2024, offers a trilingual day school program emphasizing English, Chinese, and Thai. Situated in the Phraya Suren community of northeastern Bangkok, the school provides a blend of the British and Singaporean curricula for students aged 2 to 18. In the primary years, students follow the Cambridge Primary framework alongside the Singapore Mathematics and Science syllabuses. As students progress into secondary education, the curriculum transitions into the Cambridge IGCSE for Grades 9 and 10, culminating in Cambridge AS and A Levels for Grades 11 and 12. The campus enforces a strict English and Chinese-speaking environment outside of Thai language classes to reinforce daily linguistic immersion. A distinct feature of the school is its specialized focus on competitive mathematics; the faculty regularly prepares students to represent the school in international contests such as the International Mathematical Genius Olympiad.
Krabi International School, established in 2015, offers the Cambridge curriculum from Primary through A Levels, following the English National Curriculum. Located in Nong Thale, just 15 minutes from Ao Nang and 20 minutes from Krabi Town, the campus provides a calm setting with views of Krabi’s iconic limestone karsts. Students aged 5–18 learn in small classes, averaging 18 pupils, with English as the main language of instruction and Thai and Chinese offered as subjects. Facilities include dedicated science laboratories, sports areas, and green spaces supporting the school’s environmental initiatives. A distinctive feature is its focus on sustainability, with projects such as solar energy use and on-site hydroponics. Co-educational and non-boarding, the school also provides a minibus service for transport. Clubs and activities range from Science and Chinese to Dance, Drama, and Football, reflecting opportunities for both academic and extracurricular growth within a supportive and community-oriented environment.
Lamai International School, located in the Maret sub-district of Koh Samui, opened in January 2016. It welcomes children from age 3 through early secondary years in a co-educational setting, with class sizes capped at twenty students. The youngest learners follow the Early Years Foundation Stage through a Montessori approach, while older students progress into the Cambridge Primary and Lower Secondary curriculum. All instruction is in English, and the program is complemented by the school’s Education for Sustainable Development initiative, which integrates the United Nations Sustainable Development Goals into daily learning. The school day runs from 08:35 to 16:00, including a lunch break and optional extracurricular activities in the afternoon. Transportation is available, and students receive a morning snack and lunch each day. The school is particularly noted for its focus on sustainability, small class sizes for close teacher support, and its integration of academic subjects with creative and environmental learning.
Phoenix Wittaya School, founded in 2006, is a bilingual day school located at 111 M.13 Soi Pattanakarn 9/1, Pattaya, Chon Buri, Thailand. It serves students aged 2 to 12 through Nursery to Primary 6 levels. The curriculum integrates the Thai Ministry of Education standards with the Cambridge International Programme, including Cambridge Primary and Checkpoint assessments. Instruction is provided in both English and Thai, and students also receive weekly Mandarin classes. With an enrollment of over 350 students and average class sizes of 18–25, the school emphasizes bilingual learning, small group instruction, and personal attention. Facilities include science and computer labs, art and music studios, and a swimming pool, supporting a range of activities. Phoenix is particularly known for its bilingual Cambridge-aligned programme and strong arts and sports offerings, delivered by native-speaking educators.
Traill International School, established in 1966 and located at 43 Soi 16, Ramkhamhaeng Road, Hua Mak, Bang Kapi, Bangkok, serves about 450 co‑educational students aged 2 to 18 . The school follows a modified English National Curriculum, taking learners through Cambridge IGCSE in Year 11 and Cambridge A‑Levels or Traill Diploma in Sixth Form. Class sizes are kept small with a student‑teacher ratio of 8:1 . In Bang Kapi district, its campus lies near Ramkhamhaeng University and major shopping and sports facilities, in a quiet residential/commercial neighborhood about 8 km from central BTS access. English is the language of instruction, and students study Thai language, French, Japanese, and Mandarin. Traill is noted for STEM opportunities (early computer education), a strong sports programme, and consistent academic achievement through the Cambridge examination system. It also offers extracurricular clubs such as drama, cooking, music, chess, martial arts and team sport activities.
Lighthouse International School Phuket’s secondary campus, opened in August 2024 in Rawai, offers education for Grades 7–12 (ages 11–18). Students follow the Canadian Alberta curriculum, leading to both Alberta High School and Thai Ministry of Education diplomas, with the option of Cambridge International qualifications including IGCSEs and A‑Levels. The curriculum emphasizes project‑based and personalized learning, featuring mixed‑age classes and continuous assessment to support individual progress. Facilities include a dedicated science laboratory, an ICT room, a library, and indoor/outdoor dining areas serving Thai and Western cuisine. The campus incorporates a Montessori‑inspired approach to encourage creativity, inquiry, and collaborative projects in science, business, and arts subjects. Class sizes remain small to allow close teacher–student interaction and tailored support.
RBIS International School in Bangkok serves children aged 2 to 18, following the English National Curriculum from Early Years Foundation Stage through IGCSE, then post‑16 pathways including A‑Levels, BTEC, or a High School Diploma. The school offers small class sizes - Nursery capped at 12, Primary and Secondary up to 20 students - and includes an English as an Additional Language (EAL) programme and a Nurturing Programme for students with special educational needs. RBIS provides special weekly Thai language and culture lessons, and students from Year 1–6 may join the English Explorers programme to build confidence in English through phonics, swimming, art and topic-based learning. STEM is highlighted through a dedicated STEM week, showcasing hands-on activities and project work.
Hua Hin International School (HHIS) serves children aged 3 to 18 in scenic Hua Hin, Thailand, situated near Black Mountain with views over lakes and mountain ranges. The school follows the English National Curriculum through Key Stage 3, progresses to Cambridge IGCSE in Years 10–11, and culminates in the IB Diploma Programme in the final two years. Class sizes are typically around 15 children, with a maximum of 20. Instruction is in English, with Thai taught both as a first and second language in Primary, and choices of Spanish or Mandarin from Year 3. Campus life features a 25 m swimming pool with a 15 m beginner pool, art studios, landscaped gardens and outdoor play areas. A signature feature is the school’s Eco School programme, where students help design and plant gardens—a community and service-oriented initiative rooted in hands-on environmental stewardship.
Mooltripakdee International School (MIS) is located east of Pattaya, Thailand, and serves students aged 2 to 18. The Early Years programme (ages 2–5) combines the Early Years Foundation Stage (EYFS) with Montessori methods. Primary students follow the English National Curriculum, while Secondary students are prepared for Cambridge IGCSEs, with plans to offer A-Levels. The medium of instruction is English. Students also study Thai and Chinese as subjects. The campus includes dedicated buildings for primary and secondary levels, a STEAM block for science, computing, and mathematics, music and art rooms, a library, and sports facilities such as a football pitch, swimming pool, and basketball courts. Class sizes average around 20 students. The school operates as a single-campus, co-educational day school and does not provide boarding.
Si Ri Panya International School on Koh Phangan opened in 2012 and gained its official international school license in September 2019, offering British primary education and Cambridge IGCSE qualifications. Set in the serene Ban Tai area, the campus is easily accessible on the island yet surrounded by lush, green outdoor learning spaces. The school serves ages 3 to 18, with class sizes capped at 20 and around 155 students from over 20 nationalities. The school delivers the British National Curriculum in primary and Cambridge IGCSEs in secondary, taught in English, with Thai, Spanish, and French offered as subject languages. Facilities include science and design-technology labs, two libraries, and a covered basketball court. Notably, the school holds the Eco-Schools Green Flag Award and runs Koh Phangan’s first Precious Plastic recycling project, integrating sustainability into student learning. Leadership comes from Director Nicola Bunchuay, and day-school transport is available. Si Ri Panya blends curricular focus with environmental initiative in a supportive island setting.
International Pioneers School (IPS), founded in 1998, is an international day school offering education from Kindergarten through Year 13. The school follows the National Curriculum for England, with students preparing for Cambridge IGCSE and A-Level or Pearson Edexcel qualifications in the senior years. IPS is fully accredited by ONESQA, WASC, and serves as an approved examination centre for both Cambridge and Pearson. Facilities at IPS include air-conditioned classrooms, science and computer laboratories, music and art rooms, indoor and outdoor play areas, and a library. The school also has a clinic with a full-time registered nurse.
The International School of Phuket (ISP), established in 2008, offers the Cambridge International curriculum for students aged 5 to 14. Located in Rawai, southern Phuket, the campus spans 5 rai of tropical greenery and features outdoor classrooms, sports courts, and creative arts spaces. Classes are intentionally small—averaging 15 students—to foster individualized attention. Instruction is in English, with Thai and Russian offered as additional languages. ISP is known for its nature-inspired learning environment and its strong emphasis on environmental education, with sustainability initiatives integrated into both curriculum and campus life. A key highlight is their eco-club and outdoor programs, which make full use of Phuket’s natural setting. Students also benefit from a wide range of extracurriculars, including muay thai, swimming, drawing, and drama. The school offers a GPS-tracked bus service across key areas in southern Phuket, ensuring safe transport from Monday to Friday. ISP is a co-educational, day school with no boarding.
St. Stephen’s International School in Bangkok offers education for students from early years through secondary school. It follows the British curriculum, leading to IGCSE and A Level exams in the upper years. The school includes both academic subjects and co-curricular activities as part of its regular programme. Facilities at the campus include science labs, ICT rooms, a library, music and drama rooms, a swimming pool, sports fields, and a gymnasium. Students also take part in school trips and project-based learning activities throughout the year.
Located in central Phuket, HeadStart International School’s Chaofah City Campus offers a British-style education for children aged 2–18. Following the English National Curriculum, the school prepares students for Cambridge IGCSE and A Level or BTEC pathways. Its campus features classrooms, two football pitches, a 25m swimming pool, tennis courts, science labs, and theatres. Standout programs include the Eco School initiative, empowering students to lead sustainability efforts and collaborate on environmental projects. The CAPA program enables expression in music, drama, and art, with termly showcases. Languages taught include Thai, Mandarin, French, and Russian. Students enjoy ) a wide variety of enrichment clubs, and a comprehensive transport service. With teachers from the UK, Australia, and the US, and a strong emphasis on academic and personal development, the school is well-suited to international families seeking continuity and quality education in Thailand.
Rayong English Programme School (REPS Ban Chang), founded in 2006, is a bilingual school located on Ban Chang Road in Rayong, eastern Thailand. It offers education from Nursery 1 (age 1) through Upper Secondary (M6/Grade 12) and follows a dual-language curriculum taught in English and Thai, incorporating elements from the Cambridge, Oxford, and Singapore curricula. Kindergarten classes are capped at 25 students, and lower secondary classes are supported by a co-teaching model that promotes small group learning. The school serves over 1,000 students and provides both day and boarding options. REPS offers academic enrichment through its GATE programme, STEM-focused subjects like computational science and graphic design, and weekly swimming and sports using shared facilities. Students also participate in Scouts and academic clubs that support leadership and service.
Knightsbridge House International School is a Singapore-affiliated international school located in Pak Kret, Nonthaburi. Opened in 2025, the school offers the Cambridge International Curriculum, starting from Year 1 and progressing toward IGCSE and A-Levels. The curriculum is enhanced by Singapore Math, Mandarin, and Thai language and culture, reflecting a multicultural approach to foundational learning. The campus features modern facilities including specialist science labs, art and music rooms, a swimming pool, outdoor play areas, and multi-sport fields.
Australian International School Bangkok’s Soi 31 campus offers education from Foundation to Year 12 in the heart of Sukhumvit, Bangkok. Established in 2002, the school combines the Australian Curriculum in the early years with Cambridge Lower Secondary, progressing to IGCSEs in Years 9–10 and culminating in AS and A Levels. The campus is home to the AISB Innovation & Sports Centre, which supports integrated STEAM learning alongside extensive sports and performing arts programmes. Students study in English, with Thai compulsory and additional languages including French, Mandarin, Japanese, and German. The school community includes over 800 students from diverse backgrounds, supported by co-educational classes and a supervised transport system that links both campuses. Notable initiatives include the school’s Eco-Schools sustainability programme and its well-regarded Chess Academy, which offers specialist training and competitions. Together, these features make AISB’s Soi 31 campus a distinctive choice for families seeking international education in Bangkok.
Learn Satit Pattana School (LSP) in Bangkok offers an individualized education from kindergarten through secondary school. Following a bilingual framework, the secondary curriculum incorporates Cambridge Assessment standards alongside Advanced Placement (AP) coursework. A distinctive feature is the Inter-experience Signature Programme (ISP), which allows students to earn a dual high school diploma in partnership with Washington Academy in the United States, giving them direct pathways to international universities. The 19-acre campus in Khlong Sam Wa includes specific facilities to support the academic tracks, such as music and dance studios, science laboratories, a 500-seat auditorium, and extensive sports areas including an Olympic-sized swimming pool and a 400-meter running track. From Grade 7, students can opt into the school's boarding program, which offers 24-hour supervision and daily study halls. Electives ranging from coding and AI to commercial arts ensure that students can tailor their education to their specific university and career goals.
Bangkok Prep is a British-curriculum day school in central Bangkok serving ages 2–18 across Early Years, Primary, Secondary and Sixth Form. It follows the National Curriculum of England, moving to Cambridge IGCSE in Years 10–11 and A Levels or BTEC in Sixth Form. The campus at 77 Sukhumvit 77 sits near BTS On Nut, with a free shuttle and door-to-door bus services for families. The school reports an average class size of 22 and an enrolment of 1,600+ students. Languages include Thai, Japanese (First Language), and Spanish, French, Mandarin as second-language options, with English as the language of instruction. Notable facilities and programmes showcased include extensive sports provision and a structured Music Programme with private instrumental lessons. A distinctive hallmark is Bangkok Prep’s sustainability leadership: the school is Thailand’s first Eco-Schools Green Flag recipient and has achieved three consecutive re-accreditations.
Meritton British International School in Chiang Mai opened in 2018 and offers day education for children aged 2 to roughly 16 (Pre‐Nursery to Year 11). Located on the edge of Chiang Mai’s old city, the campus is surrounded by greenery and within easy reach of the city centre and nearby mountains. The school uses English as the main language, with Thai taught according to national guidelines and Mandarin for older students. It begins with the UK’s EYFS framework, then transitions to the Cambridge Primary International Curriculum, followed by Cambridge Lower Secondary, and the new IGCSE programme in Years 10–11. From 2026, the school plans to introduce Cambridge International AS & A Level. Classes remain small, with a community of around 300 pupils. Principal Gary Booth leads a team of mostly native-English qualified teachers. The school’s Values-based Education programme—Thailand’s first VbE Quality Mark awardee—combines regular values lessons, mindfulness practices, enquiry-based learning and life‑skills projects, making it a distinctive offering for families seeking character‑focused international schooling.
BCIS Phuket International School, located in Chalong, Thailand, is a co-educational day school serving children aged 18 months to 18 years. The school offers two distinct academic streams: the British Cambridge pathway (from EYFS through A Levels) and the French National Curriculum, both taught on a single integrated campus. With average class sizes of 17, the school promotes close teacher-student interaction. BCIS is particularly recognised for its STEM facilities, including Phuket’s only school-based planetarium, hydroponics lab, robotics centre, and a horticultural research space. Students from both curriculum streams share access to the sports complex, Olympic-size swimming pool, and outdoor learning areas. The school community includes over 50 nationalities and offers support for English as an Additional Language. After-school activities span creative, academic, and service-oriented clubs. This structure provides students with a multilingual, multicultural environment that supports academic progression aligned with international benchmarks.
Southern International School Hat Yai (SIH), founded in 2015 and serving ages 2 to 18, offers a blend of British and international curricula from EYFS through IGCSE and A Levels. Located in Hat Yai, a southern Thai city near Malaysia. Class sizes are small (15–20), with total enrolment around 150–240 students. SIH teaches in English, with subjects including Thai and Mandarin. The school records a 100% IGCSE pass rate, supports the Duke of Edinburgh’s Award, and follows a distinctive blended approach combining IPC, National Curriculum (England), and Cambridge standards.
Amnuay Silpa School, established in 1926, offers children aged 2 to 18 a full bilingual Thai–UK education, following both national Thai and British curricula through IGCSE in Years 10–11 and A Levels in Years 12–13 . Located in central Bangkok’s Ratchathewi district, the school teaches primarily in English and Thai, with Mandarin as a third language. Notable facilities include dedicated labs, performance spaces, art studios, and sports fields used by 18 teams competing in regional leagues. A signature offering is its participation in the international **F1 in Schools** challenge, where students design miniature racing cars and compete globally. Additional extras include a TED Talk Club, Duke of Edinburgh Award, Student Enterprise, and the Excellelate STEM programme ; emphasizing skills in presentation, innovation, and leadership. This makes ANS particularly suitable for families seeking a bilingual school that combines national and international qualifications with hands-on, globally recognized initiatives.
SBS International School Chiangmai is a co-educational day school located in the Hang Dong district, approximately 12 kilometers southwest of Chiang Mai city center. Founded in 2014, the school welcomes students from ages 2 to 18 and offers a Cambridge-based international curriculum. Programs begin with Early Years and progress through Cambridge Primary, IGCSE, and A Level qualifications in the Sixth Form. English is the primary language of instruction, and students also study Thai and Mandarin as part of the academic program. Class sizes are capped at 30 students to support focused and engaged learning. The school currently serves more than 485 students. At the upper secondary level, students can pursue specialized academic tracks in science, engineering, medicine, and business. These strands are supported by facilities such as a medical simulation center and offer hands-on learning through internships, mentorships, and applied projects, preparing students for targeted university and career pathways.
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