Mahidol University International Demonstration School

Mahidol University International Demonstration School (MUIDS) is a co-educational international high school founded by Mahidol University in 2013. It is on the university's Salaya campus in Phutthamonthon, Nakhon Pathom, and teaches Grades 10 to 12 (Mathayom 4–6).

The academic programme is based on California's Common Core State Standards and Thailand's Basic Education Core Curriculum, so graduates receive both an American high school diploma and a Thai upper-secondary certificate. Students take a minimum of 27 credits a year and at least 81 credits in total. The day has six 60-minute periods, five days a week, and clubs run in a later period. The school states that it is fully accredited by the Western Association of Schools and Colleges (WASC) for 2024–2030.

• Entry is at Grade 10 through an entrance examination held in several rounds each year
• Applications are made online, and admissions can be contacted by email or phone
• As a demonstration school of Mahidol University, it is closely linked to the university, including partnership programmes such as a dual-diploma pathway