The 2021–22 WAC men's basketball season began with practices in October 2021 followed by the 2021–22 NCAA Division I men's basketball season in November 2021. The conference began play in December 2021. This is the WAC's 60th season of basketball. On July 1st, 2021, The WAC officially welcomed four new members: Abilene Christian, Lamar, Sam Houston, and Stephen F. Austin to grow and revitalize the conference. All four were previously in the Southland Conference. The WAC now has 6 full members in Texas, making it the largest DI conference in the state. Each WAC member will play an 18-game conference schedule.