This is an alphabetical list of NCAA Division I conferences. This page will be maintained concurrently with the equivalent category.
Current conferences
- America East Conference
- American Athletic Conference — operates under the original 1979 charter of the Big East Conference, but does not claim the basketball history of the current Big East
- ASUN Conference
- Atlantic Coast Conference
- Atlantic 10 Conference
- Big East Conference — current charter established in 2013, but maintains the basketball history of the 1979–2013 Big East
- Big Sky Conference
- Big South Conference
- Big Ten Conference
- Big 12 Conference
- Big West Conference
- Colonial Athletic Association
- Conference USA
- Horizon League
- Ivy League
- Metro Atlantic Athletic Conference
- Mid-American Conference
- Mid-Eastern Athletic Conference
- Missouri Valley Conference
- Mountain West Conference
- NCAA Division I Independents
- Northeast Conference
- Ohio Valley Conference
- Pac-12 Conference
- Patriot League
- Southeastern Conference
- Southern Conference
- Southland Conference
- Southwestern Athletic Conference
- Summit League
- Sun Belt Conference
- West Coast Conference
- Western Athletic Conference
Defunct conferences
This list includes conferences that operated as "major conferences" before NCAA Division I was established as the NCAA University Division in 1956. (The "Division I" name was adopted in 1973.)
- American Metro Conference
- American South Conference — merged into the Sun Belt Conference
- Big Eight Conference — part of the merger that formed the current Big 12 Conference, but the Big 12 does not recognize the Big Eight's history
- Border Intercollegiate Athletic Association
- East Coast Conference — absorbed by the conference now known as the Summit League. Not to be confused with the current NCAA Division II conference of the same name.
- Eastern Intercollegiate Basketball League — absorbed by the Ivy League and claimed by that league as part of its own history
- Gateway Collegiate Athletic Conference — originally a women-only conference; later added football as its only men's sport. Women's league absorbed by the Missouri Valley Conference; conference charter maintained by the football league, now known as the Missouri Valley Football Conference.
- Great Midwest Conference — half of the merger that formed Conference USA
- Great West Conference
- Gulf Star Conference — effectively absorbed by the Southland Conference
- High Country Athletic Conference — women-only conference absorbed by the Western Athletic Conference
- Metro Conference — the other half of the merger that formed Conference USA
- Metropolitan Collegiate Conference — not to be confused with the Metro Conference
- Metropolitan New York Conference
- Mountain States Conference
- Mountain West Athletic Conference — women-only conference absorbed by the Big Sky Conference. Not to be confused with today's Mountain West Conference.
- New England Conference — Disbanded, though four of its members became founding members of the Yankee Conference under a new charter.
- New South Women's Athletic Conference — as its name suggests, women-only; absorbed by the league now known as the ASUN Conference
- North Star Conference — women-only conference effectively absorbed by the conference now known as the Summit League
- Northern Pacific Conference — women-only; disbanded once the Pac-10 Conference (now Pac-12) began sponsoring women's sports
- Orange Belt Conference
- Pacific Coast Conference — claimed by the Pac-12 Conference as part of its own history, though it operated under a separate charter
- Southwest Conference
- Western Collegiate Athletic Association — women-only league; known in its final season of 1985–86 as the Pacific West Conference (not to be confused with the modern NCAA Division II league). Also disbanded when the Pac-10 began sponsoring women's sports.
- Yankee Conference — founded as an all-sports league, but became football-only in 1975 and was eventually absorbed by the Atlantic 10 Conference in 1997.