The International School of Indiana (ISI) is an independent private school in Indianapolis, Indiana. Since its founding in 1994, ISI has grown into a 3-year-old through Grade 12 school of more than 600 students. ISI is recognized as an IB World School, offering immersion programs for its students in the Spanish, French, and Mandarin Chinese languages, with students picking up a third language in grade 6. It was formerly affiliated with the French AEFE.