NAIA regions no longer exist. The following is a list of former National Association of Intercollegiate Athletics regions.
Region I of the NAIA
Cascade Collegiate Conference
Frontier Conference
Independents: University of Alberta University of British Columbia
University of Victoria
Region II of the NAIA
California Pacific Conference
Golden State Athletic Conference
Independents:
Region III of the NAIA
Great Plains Athletic Conference
North Star Athletic Association
Independents: University of Regina
Region IV of the NAIA
Kansas Collegiate Athletic Conference
Midlands Collegiate Athletic Conference
Region V of the NAIA
American Midwest Conference
Heart of America Athletic Conference
Independents:
Region VI of the NAIA
Red River Athletic Conference
Sooner Athletic Conference
Independents:
Region VII of the NAIA
Chicagoland Collegiate Athletic Conference
Midwest Collegiate Conference
Region VIII of the NAIA
Crossroads League
Wolverine-Hoosier Athletic Conference
Independents
University of Windsor
Region IX of the NAIA
American Mideast Conference
Independent:
Region X of the NAIA
Sunrise Athletic Conference
Independent: State University of New York at Delhi
Region XI of the NAIA
TranSouth Athletic Conference
Mid-South Conference
Region XII of the NAIA
Appalachian Athletic Conference
River States Conference
Independents: Morris College Voorhees College