The BBWAA presents the Manager of the Year award for the National League for 2020 to Don Mattingly of the Miami Marlins. Mattingly received 124 points with 20 first place votes. Jayce Tingler of the Padres garnered 71 points for second place, and David Ross of the Cubs came in third with 25 points. Six different managers received first place votes.

This is well deserved given the problems faced by the Marlins in 2020. Mattingly is now one of the few people to win an MVP and a Manager of the Year award.