Top International Schools in Chiang Mai

Overview: US Curriculum, AP · 5–18 · THB 269.5K–THB 330.5K

Grace International School (GIS) is a Christ-centered K–12 international school founded in 1999 in Chiang Mai, Thailand, serving over 500 students from 40+ countries on a 37-acre campus. Operating an American-style curriculum integrated with a Biblical worldview, GIS offers AP and SAT preparation alongside strong arts, sports, and service programs. The school primarily serves international Christian worker families and missionaries, providing quality, affordable education that enables families to remain on the mission field. Accredited by WASC and ACSI, GIS fosters a tight-knit multicultural community united by shared faith and academic ambition.

Overview: British National Curriculum, IGCSE · 3–16 · THB 290K–THB 496.8K

Founded in 1993 in Chiang Mai, Thailand, Nakornpayap International School (NIS) is a WASC-accredited institution offering an American-based curriculum from preschool through Grade 12, with an extensive range of AP courses. The school embraces its motto 'Education Through Diversity', welcoming students from over 30 nationalities in a multicultural community of approximately 450 students. With small class sizes averaging 15 students and a student-to-teacher ratio of approximately 6:1, NIS provides personalized academic attention alongside a comprehensive extracurricular programme. The school is committed to developing critical thinkers who are active, caring members of the global community.

Overview: US Curriculum, AP · 3–18 · THB 341.7K–THB 580.2K

Chiang Mai International School (CMIS) is a non-profit, English-medium international school founded in 1954, making it one of the oldest international schools in Chiang Mai, Thailand. Serving over 500 students from 30+ nationalities, CMIS offers a US-aligned curriculum with Advanced Placement (AP) courses at the high school level. The school is accredited by WASC and is a member of EARCOS, reflecting its commitment to high academic standards. Rooted in Christian values, CMIS fosters a caring community that emphasizes academics, arts, athletics, and community service. Its central Chiang Mai campus features modern facilities including a gymnasium, auditorium, learning center, and cafeteria.

Overview: IB PYP, IB MYP · 3–18 · THB 380K–THB 736K

Prem Tinsulanonda International School is a co-educational day and boarding IB school nestled on a 100-acre forested campus at the foothills of Doi Suthep in Chiang Mai, Thailand, founded in 2001. It is the first school in Southeast Asia to offer the full IB continuum — PYP, MYP, DP, and Career-related Programme — serving around 555 students from more than 20 countries. The school places strong emphasis on holistic, inquiry-driven education rooted in sustainability, creativity, and global citizenship. With over 100 co-curricular clubs and teams and specialist academies in music, golf, tennis, and swimming, students are empowered to develop diverse talents both inside and outside the classroom. Prem's residential programme accepts students from Grade 3 through Grade 12, fostering independence and international community in a caring boarding environment.

Overview: IB CP, IB Diploma · — · THB 380K–THB 736K

Prem Tinsulanonda International School (Prem) is a co-educational IB World School in Chiang Mai, Thailand, offering all four IB programmes (PYP, MYP, DP, CP) for ages 3–19. Founded in 2001 as part of the Traidhos Three-Generation Learning Community, Prem's 100-acre campus features boarding apartments, six science labs, an Olympic-size pool, arts studios, a farm, a black-box theatre, and extensive sports facilities. The school emphasises personalised, inquiry-based learning, sustainability, and the development of compassionate global citizens. With over 500 students from 33 nationalities and a vibrant co-curricular programme (Exploria) offering 100+ activities, Prem provides a rich international education in a uniquely natural setting near Mae Rim, Chiang Mai.

Overview: British National Curriculum, IGCSE · 3–18 · THB 423.4K–THB 813.4K

Lanna International School is a British-style international day school in Chiang Mai, Thailand, serving students aged 2-18 since 1993. It offers the National Curriculum of England enhanced with the International Early Years and Primary curricula, culminating in Cambridge IGCSE and A-Level qualifications. With approximately 1,000 students from 31 nationalities, LANNA emphasises academic excellence within a caring community. The unified Hang Dong campus (consolidated in 2023) features state-of-the-art STEAM labs, arts facilities, a 50m swimming pool, and sports amenities. Graduates consistently achieve strong external exam results and matriculate to top global universities, with approximately 70% entering QS Top 100 institutions.