Cathedral Catholic Academy is the K-8 Catholic co-educational School of Our Lady of Peace Parish, located in the lower Nuuanu area on the island of Oahu.

In 1993 Cathedral Catholic Academy was among the first Catholic elementary schools to be fully accredited by the Western Association of Schools and Colleges (WASC) and the Western Educational Association (WCEA).

Cathedral Catholic Academy has an enrollment of 139 students; the student-teacher ratio is 15:1.

Complimentary early-morning childcare is provided; there is an after school program available for a fee.