The 2020 Bett1Hulks Indoors was an ATP tournament organized for male professional tennis players, held in Cologne, Germany, in mid-October 2020 on indoor hard courts. It was primarily organized due to the cancellation of many tournaments during the 2020 season due to the COVID-19 pandemic. It was the first and only edition of the tournament and took place at the Lanxess Arena in Cologne, Germany, from October 12 through 18, 2020.