
St. Marks Australian International School
Part of A.G.L. Company International Company Limited, Christian, Founded 1999
Updated July 2026
St. Marks Australian International School is a trilingual, Christian-based international school in Thailand that provides an Australian-accredited curriculum for students from Early Years through Secondary School. It is distinguished by its strong emphasis on Mathematics, Science, and the mastery of English, Mandarin, and Thai.
Curriculum
Term structure
Teaching approach
Guided by Christian principles, the school aims to develop confident, motivated, optimistic, and responsible citizens. Its core values, summarized by the acronym ICARE, stand for Integrity, Compassion, Aspiration, Respect, and Effort, which are integrated into a program focused on academic excellence and exemplary character.
Programmes
The school offers a trilingual education (English, Mandarin, and Thai) grounded in the Australian curriculum framework. The Early Years (Nursery to Preparatory) focuses on play-based learning, while the Primary Program (Year 1-6) emphasizes literacy, numeracy, and problem-solving. The Secondary Program includes Lower Secondary (Year 7-10) based on the Cambridge IGCSE, and Upper Secondary (Year 11-12) utilizing the Australian Matriculation Program (AUSMAT), which allows students to complete their pre-university studies in 1.5 years.
Outcomes
Graduates earn the Western Australian Certificate of Education (WACE) and an Australian Tertiary Admission Rank (ATAR), facilitating direct entry to universities worldwide. Recent IGCSE results show 30% of entries achieving A* and 97% achieving A*-C grades. Students have secured scholarships and placements at institutions including the University of Melbourne, Nanyang Technological University, and top Thai universities like Mahidol and Chulalongkorn.
Student support
Learning support
The school monitors student progress to ensure well-being and achievement, with an emphasis on individualized education. During the admissions process, the school assesses students to determine if specific learning support is required.
Frequently asked questions(5)
- What curriculum does St. Marks Australian International School offer?
- St. Marks Australian International School offers IGCSE.
- What ages does St. Marks Australian International School teach?
- St. Marks Australian International School enrolls students aged 3 to 18.
- Is St. Marks Australian International School a day or boarding school?
- St. Marks Australian International School is a day school.
- Is St. Marks Australian International School co-educational?
- St. Marks Australian International School is a co-ed school.
- Where is St. Marks Australian International School located?
- St. Marks Australian International School is an international school in Bangkok, Thailand.
Tuition & fees
No published fee schedule was found for this school.
Admissions
The school offers rolling enrollment for students aged 3 to 18, subject to availability. The process requires a school visit, submission of an application with a 10,000 Baht fee, and age-specific assessments in English, Mathematics, and Mandarin. Families may join a waiting list with a 50,000 Baht refundable deposit, with priority given to siblings of current students.
Calendar
The academic year consists of two semesters, with school fees paid by semester. Daily school hours are 8:00 am to 3:10 pm for Pre-Prep through Year 12, while Kindergarten operates from 8:00 am to 1:00 pm, with an optional after-school care program available until 3:10 pm. Extra-curricular activities typically run from 3:15 pm to 4:00 pm.
Facilities
About the campus
The campus features a two-storey library, science labs, a computer room, and spacious classrooms. Physical education facilities include an indoor gym, an outdoor gym, a basketball court, a football field, and a track and field area, complemented by a playground with a unique slide connecting the 3rd and 2nd floors. Additional amenities include music rooms with individual practice spaces, a table tennis room, a stair garden, and a canteen.
Co-curriculars
The school provides a range of extra-curricular activities (ECAs) for primary and secondary students, including options in music (such as violin), technology, science, and English. Some activities are conducted on-campus, while others may take place off-campus or be provided by external groups for an additional fee.






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IGCSE