American Pacific International School (APIS) was founded by Kritsanant Palarit in August 1997. Kritsanant’s vision was to provide a world-class university preparation education and boarding program in a remarkable Thai environment.

Our Main Campus (MC) was established in 1997, teaching students from Grades 7 to 10. This campus has seen many remarkable changes over the years, expanding to include Grades 1 through 12, and in 2009 embracing the International Baccalaureate Primary Years(PYP) and the eventual support of our Middle Years Programme (MYP), and the Diploma Programme(DP).

In 2000, APIS opened a Kindergarten campus within central Chiangmai.  This early years campus provided a strong progressive educational foundation for our youngest students.

In 2014, due to the exceptional growth of our Kindergarten campus, a new purpose-built facility, Primary campus (PC) was created and now serves our students from Pre-nursery through Grade 6.  This new PYP campus is officially referred to as American Pacific International School (Primary) (APISP).

Today our school hosts over 400 IB students across both campuses, Prenursery through Grade 12; with more than 20 nationalities representing our diverse student population.  Our school continues to thrive as a learning community passionately educating, inspiring, nurturing, and maximizing each student’s potential to become a global citizen and a happy lifelong learner.