Iolani School is a private coeducational college preparatory school in Honolulu, Hawaiʻi. It serves over 2,020 students with a boarding program for grades 9 - 12 as well as a summer boarding program for middle school grades.
It is administered by a Board of Governors and is one of the largest independent schools in the United States.

Tuition $28,250. Annual technology fee $525.