See main article: article and 2020 Hamburg European Open.
Oliver Marach and Jürgen Melzer were the defending champions, but Melzer chose not to participate this year. Marach played alongside Raven Klaasen, but lost in the first round to Kevin Krawietz and Andreas Mies.
John Peers and Michael Venus won the title, defeating Ivan Dodig and Mate Pavić in the final, 6–3, 6–4.
