The 1999–2000 NCAA Division I men's basketball season began on November 11, 1999, with the Coaches vs. Cancer Classic, progressed through the regular season and conference tournaments, and concluded with the 2000 NCAA Division I men's basketball tournament championship game on April 3, 2000, at the RCA Dome in Indianapolis, Indiana.

Season headlines

Rules changes

Season outlook

Pre-season polls

The top 25 from the AP Poll November 9, 1999 and the ESPN/USA Today Poll November 4, 1999.

Conference membership changes

These schools joined new conferences for the 1999–2000 season.

Regular season

Conferences

Conference winners and tournaments

Twenty-nine conferences concluded their seasons with a single-elimination tournament, with only the Ivy League and the Pacific-10 Conference choosing not to conduct conference tournaments. Conference tournament winners generally received an automatic bid to the 2000 NCAA Division I men's basketball tournament. The Mountain West Conference (MWC) began operation in 1999-2000 and its tournament winner did not receive an automatic bid, although UNLV, the winner of the inaugural MWC tournament, did receive an at-large bid.

Conference standings

Division I independents

Five schools played as Division I independents.

Informal championships

After eight seasons in which each of Philadelphia Big 5 member played only two games against other Big 5 schools each year, the Big 5 returned to a full round-robin schedule in which each team met each other team once, a format it had used from its first season of competition in 1955–56 through the 1990–91 season. Temple and Villanova both finished with 3–1 records in head-to-head competition among the Big 5.

Statistical leaders

Source for additional stats categories

Post-season tournaments

NCAA tournament

Final Four – RCA Dome, Indianapolis, Indiana

National Invitation tournament

Semifinals & finals

Award winners

Consensus All-American teams

Major player of the year awards

Major freshman of the year awards

Major coach of the year awards

Other major awards

Coaching changes

A number of teams changed coaches throughout the season and after the season ended.