The 2021 Hylo Open was a badminton tournament which took place at the Saarlandhalle in Saarbrücken, Germany, from 2 to 7 November 2021 with a total prize of US$320,000. In 2021, the tournament changed its name from SaarLorLux Open to Hylo Open and was upgraded from a Super 100 tournament to a Super 500.