The 2019–20 Blackpool F.C. season was the club's 111th season in the English Football League and their third-consecutive season in League One, the third tier of the Football League. The season covered the period from 1 July 2019 to 30 June 2020. Blackpool finished a curtailed season in 13th place. Terry McPhillips resigned as manager on 5 July after one season in charge. He was succeeded by Simon Grayson, who returned to the club after leaving them for Leeds United in 2008. Grayson was sacked on 12 February after a string of defeats. Neil Critchley was appointed as his successor on 2 March.