The 2020 Supertaça Cândido de Oliveira was the 42nd edition of the Supertaça Cândido de Oliveira. It was played between the champions of the 2019–20 Primeira Liga and winners of the 2019–20 Taça de Portugal, Porto, and the runners-up of the Taça de Portugal, Benfica, on 23 December 2020. Porto won the match 2–0 to secure their second Supertaça title in three years and extend their record to 22 titles overall.

The Supertaça Cândido de Oliveira is an annual Portuguese football match played since 1979 between the winners of the top-tier league and cup competitions.a The match and trophy are named after former Portuguese player, coach and sports journalist Cândido de Oliveira. Recognised and organised by the Portuguese Football Federation since 1981, the Supertaça is usually played in August, before the start of the league season.