2020–21 Big Ten Conference men's basketball season

The 2020–21 Big Ten men's basketball season began with practices in October 2020, followed by the start of the 2020–21 NCAA Division I men's basketball season in November 2020. The regular season ended in March 2021. The Big Ten announced the season schedule on November 18, 2020 with games starting on December 13 and featuring games played on December 25 and 26. The schedule had built-in collapsible byes to attempt to make up for expected COVID-19 issues. The conference played the highest percentage of scheduled conference games in the nation, having only four games that could not be played.

2020–21 Big Ten Conference men's basketball season

The 2020–21 Big Ten men's basketball season began with practices in October 2020, followed by the start of the 2020–21 NCAA Division I men's basketball season in November 2020. The regular season ended in March 2021. The Big Ten announced the season schedule on November 18, 2020 with games starting on December 13 and featuring games played on December 25 and 26. The schedule had built-in collapsible byes to attempt to make up for expected COVID-19 issues. The conference played the highest percentage of scheduled conference games in the nation, having only four games that could not be played.