Category:Defunct NCAA Division I conferences

Articles about NCAA Division I college athletic conferences that are now defunct. This includes the following:


 * Conferences that disbanded before the NCAA split into divisions for the first time in 1956, but are retroactively recognized by the NCAA as having been "major conferences".
 * Conferences that, at their demise, were members of the NCAA University Division, the predecessor to Division I (1956–1972).
 * Conferences that operated in NCAA sports whose championships were open to members of more than one NCAA division (called "National Collegiate" by the NCAA), and included schools that were full members of Division I or its predecessors.