The 2020 UEFA European Football Championship, commonly referred to as UEFA Euro 2020 (stylised as UEFA EURO 2020) or simply Euro 2020, was the 16th UEFA European Championship, the quadrennial international men's football championship of Europe organised by the Union of European Football Associations (UEFA).

To celebrate the 60th anniversary of the European Championship competition, UEFA president Michel Platini declared that the tournament would be hosted in several nations as a "romantic" one-off event, with 11 cities in 11 UEFA countries each providing venues for the tournament.

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The tournament was originally intended to be played between 12 June and 12 July 2020. However, due to the COVID-19 pandemic in Europe during that year, the tournament was postponed to June and July 2021, while retaining the name UEFA Euro 2020 and host venues. Alongside special rules regarding COVID-19, UEFA also allowed two extra substitutions and implemented video assistant referee (VAR) for the first time.