2020–21 Mansfield Town F.C. season

The 2020–21 season was the 124th season in the history of Mansfield Town and the eighth consecutive season in the League Two. Along with League Two, the club also participated in the FA Cup, EFL Cup and EFL Trophy.

The season covers the period from 1 July 2020 to 30 June 2021.

Matches
The 2020–21 season fixtures were released on 21 August.

FA Cup
The draw for the first round was made on Monday 26, October. The second round draw was revealed on Monday, 9 November by Danny Cowley. The third round draw was made on 30 November, with Premier League and EFL Championship clubs all entering the competition.

EFL Cup
The first round draw was made on 18 August, live on Sky Sports, by Paul Merson.

EFL Trophy
The regional group stage draw was confirmed on 18 August.