The 2020 Tennis Challenger Hamburg was a professional tennis tournament played on indoor hard courts. It was the second edition of the tournament which was part of the 2020 ATP Challenger Tour. It took place in Hamburg, Germany between 26 October and 1 November 2020.
Singles main-draw entrants
Seeds
1 Rankings are as of 19 October 2020.
Other entrants
The following players received wildcards into the singles main draw: Daniel Altmaier Maximilian Marterer Daniel Masur
The following player received entry into the singles main draw using a protected ranking: Dustin Brown
The following players received entry into the singles main draw as special exempts: Benjamin Bonzi Borna Gojo
The following players received entry from the qualifying draw: Matthias Bachinger Tobias Kamke Pavel Kotov Stefano Napolitano
The following players received entry as lucky losers: Hugo Gaston Illya Marchenko
Champions
Singles
Taro Daniel def. Sebastian Ofner 6–1, 6–2.
Doubles
Marc-Andrea Hüsler / Kamil Majchrzak def. Lloyd Glasspool / Alex Lawson 6–3, 1–6, [20–18].