2021 Geneva Open
Date	15 – 22 May
Edition	18th
Category	ATP Tour 250
Draw	28S / 16D
Prize money	€481,270
Surface	Clay
Location	Geneva, Switzerland
Venue	Tennis Club de Genève
Champions
Singles
Casper Ruud
Doubles
John Peers / Michael Venus
← 2019 · Geneva Open · 2022 →

The 2021 Geneva Open (sponsored by Gonet) was a men's tennis tournament played on outdoor clay courts. It was the 18th edition of the Geneva Open and part of the ATP Tour 250 series of the 2021 ATP Tour. It took place at the Tennis Club de Genève in Geneva, Switzerland, from May 15 through May 22, 2021.^[1]

Champions

Singles

• Casper Ruud def. Denis Shapovalov, 7–6^(8–6), 6–4

Doubles

• John Peers / Michael Venus def. Simone Bolelli / Máximo González, 6–2, 7–5

Points and prize money

Point distribution

Prize money

_{*per team}

Singles main draw entrants

Seeds

Country	Player	Rank1	Seed
SUI	Roger Federer[2]	8	1
CAN	Denis Shapovalov	14	2
NOR	Casper Ruud	16	3
BUL	Grigor Dimitrov	17	4
CHI	Cristian Garín	22	5
ITA	Fabio Fognini	28	6
FRA	Benoît Paire	35	7
FRA	Adrian Mannarino	36	8

• Rankings are as of May 10, 2021. ^[3]

Other entrants

The following players received wildcards into the singles main draw:

• Grigor Dimitrov
• Arthur Cazaux
• Dominic Stricker

The following players received entry from the qualifying draw:

• Marco Cecchinato
• Pablo Cuevas
• Ilya Ivashka
• Henri Laaksonen

The following player received entry as a lucky loser:

• Daniel Altmaier

Withdrawals

Before the tournament

• Alexander Bublik → replaced by Tennys Sandgren
• Borna Ćorić → replaced by Feliciano López
• Alejandro Davidovich Fokina → replaced by Thiago Monteiro
• Alex de Minaur → replaced by Jordan Thompson
• Cristian Garín → replaced by Daniel Altmaier
• Filip Krajinović → replaced by Salvatore Caruso
• Jan-Lennard Struff → replaced by Fernando Verdasco

Retirements

• Stefano Travaglia

Doubles main draw entrants

Seeds

Country	Player	Country	Player	Rank1	Seed
AUT	Oliver Marach	CRO	Mate Pavić	31	1
AUS	John Peers	NZL	Michael Venus	42	2
RSA	Raven Klaasen	JPN	Ben McLachlan	65	3
IND	Rohan Bopanna	CRO	Franko Škugor	73	4

• Rankings are as of May 10, 2021.

Other entrants

The following pairs received wildcards into the doubles main draw:

• Arthur Cazaux / Li Hanwen
• Marc-Andrea Hüsler / Dominic Stricker

Withdrawals

Before the tournament

• Alex de Minaur / Jordan Thompson → replaced by Nathaniel Lammons / Jackson Withrow
• Wesley Koolhof / Jean-Julien Rojer → replaced by Marin Čilić / Andrey Golubev
• Nicholas Monroe / Reilly Opelka → replaced by Nicholas Monroe / Benoît Paire
• Rajeev Ram / Joe Salisbury → replaced by Pablo Cuevas / Guido Pella