Ramkhamhaeng Advent International School (RAIS; Thai: โรงเรียนนานาชาติแอ๊ดเวนต์รามคำแหง, RTGS: Rong Rian Nana Chat Aetwen Ramkhamhaeng) is an international school in Bang Kapi District, Bangkok, Thailand,[1] established in 1999.

Most recent enrollment figures show the total number of students reaching nearly seven hundred in grades K-12 and English as a Foreign Language (EFL) without counting the feeding programs.

In addition to stressing academic achievement, RAIS curriculum places an equal importance on character development.

Students are taught and encouraged to demonstrate respect for diverse cultures and people both in words and in deeds.

The academics at RAIS revolve around scholastic learning and moral maturation.