Geneva Open este un turneu de tenis afiliat ATP Tour (fost Grand Prix), care a avut loc anual din 1980 până în 1991 la Geneva, Elveția, pe terenuri cu zgură. În noiembrie 2014, ATP a anunțat că turneul de la Düsseldorf va fi mutat la Geneva, unde va avea loc în 2015, ca un turneu ATP 250.
| An | Campion | Finalist | Scor |
| 1980 |  Balázs Taróczy |  Adriano Panatta | 6–3, 6–2 |
| 1981 |  Björn Borg |  Tomáš Šmíd | 6–4, 6–3 |
| 1982 | Mats Wilander | Tomáš Šmíd | 7–5, 4–6, 6–4 |
| 1983 | Mats Wilander | Henrik Sundström | 3–6, 6–1, 6–3 |
| 1984 |  Aaron Krickstein | Henrik Sundström | 6–7, 6–1, 6–4 |
| 1985 | Tomáš Šmíd | Mats Wilander | 6–4, 6–4 |
| 1986 |  Henri Leconte | Thierry Tulasne | 7–5, 6–3 |
| 1987 |  Claudio Mezzadri | Tomáš Šmíd | 6–4, 7–5 |
| 1988 | Marián Vajda | Kent Carlsson | 6–4, 6–4 |
| 1989 | Marc Rosset |  Guillermo Pérez Roldán | 6–4, 7–5 |
| 1990 |  Horst Skoff |  Sergi Bruguera | 7–6, 7–6 |
| 1991 | Thomas Muster | Horst Skoff | 6–2, 6–4 |
| 1992–2014 | Challenger tournament |
| 2015 |  Thomaz Bellucci |  João Sousa | 7–6(7–4), 6–4 |
| 2016 | Stan Wawrinka |  Marin Čilić | 6–4, 7–6(13–11) |
| 2017 | Stan Wawrinka |  Mischa Zverev | 4–6, 6–3, 6–3 |
| 2018 | Márton Fucsovics | Peter Gojowczyk | 6–2, 6–2 |
| 2019 | Alexander Zverev |  Nicolás Jarry | 6–3, 3–6, 7–6(10–8) |
| 2020 | Anulat din cauza pandemiei de COVID-19 |
| 2021 |  Casper Ruud |  Denis Șapovalov | 7–6(8–6), 6–4 |
| 2022 | Casper Ruud (2) | João Sousa | 7–6(7–3), 4–6, 7–6(7–1) |
| 2023 | Nicolás Jarry |  Grigor Dimitrov | 7–6(7–1), 6–1 |
| 2024 | Casper Ruud (3) | Tomáš Macháč | 7–5, 6–3 |
| An | Campion | Finalist | Scor |
| 1980 |  Željko Franulović
Balázs Taróczy | Heinz Günthardt
Markus Günthardt | 6–4, 4–6, 6–4 |
| 1981 | Heinz Günthardt
Balázs Taróczy | Pavel Složil
Tomáš Šmíd | 6–4, 3–6, 6–2 |
| 1982 | Pavel Složil
Tomáš Šmíd |  Carl Limberger
 Mike Myburg | 6–4, 6–0 |
| 1983 | Stanislav Birner
Blaine Willenborg | Joakim Nyström
Mats Wilander | 6–1, 2–6, 6–3 |
| 1984 |  Michael Mortensen
Mats Wilander |  Libor Pimek
Tomáš Šmíd | 6–1, 3–6, 7–5 |
| 1985 | Sergio Casal
Emilio Sánchez |  Carlos Kirmayr
Cássio Motta | 6–4, 4–6, 7–5 |
| 1986 | Andreas Maurer
Jörgen Windahl | Gustavo Luza
Gustavo Tiberti | 6–4, 3–6, 6–4 |
| 1987 | Ricardo Acioly
Luiz Mattar |  Mansour Bahrami
 Diego Pérez | 3–6, 6–4, 6–2 |
| 1988 | Mansour Bahrami
Tomáš Šmíd | Gustavo Luza
Guillermo Pérez Roldán | 6–4, 6–3 |
| 1989 |  Andrés Gómez
Alberto Mancini | Mansour Bahrami
Guillermo Pérez Roldán | 6–3, 7–5 |
| 1990 | Pablo Albano
David Engel | Neil Borwick
 David Lewis | 6–3, 7–6 |
| 1991 | Sergi Bruguera
Marc Rosset | Per Henricsson
Ola Jonsson | 3–6, 6–3, 6–2 |
| 1992–2014 | Challenger tournament |
| 2015 |  Juan Sebastián Cabal
Robert Farah |  Raven Klaasen
 Lu Yen-hsun | 7–5, 4–6, [10–7] |
| 2016 | Steve Johnson
Sam Querrey | Raven Klaasen
Rajeev Ram | 6–4, 6–1 |
| 2017 |  Jean-Julien Rojer
 Horia Tecău | Juan Sebastián Cabal
Robert Farah | 2–6, 7–6(11–9), [10–6] |
| 2018 | Oliver Marach
Mate Pavić | Ivan Dodig
Rajeev Ram | 3–6, 7–6(7–3), [11–9] |
| 2019 | Oliver Marach
Mate Pavić | Matthew Ebden
Robert Lindstedt | 6–4, 6–4 |
| 2020 | Anulat din cauza pandemiei de COVID-19 |
| 2021 | John Peers
Michael Venus | Simone Bolelli
Máximo González | 6–2, 7–5 |
| 2022 | Nikola Mektić
Mate Pavić (3) | Pablo Andújar
Matwé Middelkoop | 2–6, 6–2, [10–3] |
| 2023 |  Jamie Murray
Michael Venus (2) | Marcel Granollers
Horacio Zeballos | 7–6(8–6), 7–6(7–3) |
| 2024 |  Marcelo Arévalo
Mate Pavić (4) | Jean-Julien Rojer
Lloyd Glasspool | 7–6(7–2), 7–5 |
Casper Ruud
Marcelo Arévalo
Mate Pavić
