The 2020–21 Indian Super League playoffs was seventh playoffs series in the Indian Super League, one of the top Indian professional football leagues.
The top four teams from the 2020–21 ISL regular season had qualified for the playoffs.
The semi-finals took place over two legs while the final was a one-off match at the Fatorda Stadium in Margao, Goa[1]
Mumbai City won 6–5 on penalties.
ATK Mohun Bagan won 3–2 on aggregate.