The 2020 European Open was a men's tennis tournament played on indoor hard courts.

It was the fifth edition of the European Open and part of the ATP Tour 250 series of the 2020 ATP Tour.

It took place at the Lotto Arena in Antwerp, Belgium, from October 19 to October 25.

[1] The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following player received entry as a lucky loser: The following pairs received wildcards into the doubles main draw: The following pairs received entry as an alternates: