| Singles | |
|---|---|
| 2022 Tunis Open | |
| Champion |  Roberto Carballés Baena |
| Runner-up |  Gijs Brouwer |
| Score | 6–1, 6–1 |
Pablo Cuevas was the defending champion [1] but chose not to participate.
Roberto Carballés Baena won the title after defeating Gijs Brouwer 6–1, 6–1 in the final.
Jordan Thompson (second round) Roberto Carballés Baena (champion) Javier Barranco Cosano (first round)
Frederico Ferreira Silva (quarterfinals) Jelle Sels (second round)
Nicola Kuhn (quarterfinals)
Zhang Zhizhen (semifinals)
Kimmer Coppejans (first round)| Semifinals | Final | ||||||||||||
 Filip Misolic | 2 | 2 | |||||||||||
| Gijs Brouwer | 6 | 6 | |||||||||||
| Gijs Brouwer | 1 | 1 | |||||||||||
| 2 | Roberto Carballés Baena | 6 | 6 | ||||||||||
| 7 | Zhang Zhizhen | 2 | 1 | ||||||||||
| 2 | Roberto Carballés Baena | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | J Thompson | 6 | 6 | ||||||||||||||||||||||||
| Q |  R Bertola | 1 | 4 | 1 | J Thompson | 77 | 67 | 1 | |||||||||||||||||||
| L Miedler | 2 | 6 | 1 | F Misolic | 65 | 79 | 6 | ||||||||||||||||||||
| F Misolic | 6 | 3 | 6 | F Misolic | 6 | 6 | |||||||||||||||||||||
| Alt |  P Krstin | 4 | 0 | 6 | N Kuhn | 3 | 4 | ||||||||||||||||||||
 D Michalski | 6 | 6 | D Michalski | 2 | 61 | ||||||||||||||||||||||
| Alt |  C Hemery | 4 | 1 | 6 | N Kuhn | 6 | 77 | ||||||||||||||||||||
| 6 | N Kuhn | 6 | 6 | F Misolic | 2 | 2 | |||||||||||||||||||||
| 3 | J Barranco Cosano | 4 | 5 | G Brouwer | 6 | 6 | |||||||||||||||||||||
| M Janvier | 6 | 7 | M Janvier | 4 | 62 | ||||||||||||||||||||||
| G Brouwer | 77 | 6 | G Brouwer | 6 | 77 | ||||||||||||||||||||||
| Q |  A Šetkić | 63 | 3 | G Brouwer | 6 | 6 | |||||||||||||||||||||
| O Roca Batalla | 6 | 6 | O Roca Batalla | 4 | 3 | ||||||||||||||||||||||
| Q |  F Gill | 1 | 4 | O Roca Batalla | 7 | 77 | |||||||||||||||||||||
| Q | A Erler | 77 | 77 | Q | A Erler | 5 | 62 | ||||||||||||||||||||
| 8 | K Coppejans | 65 | 61 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 7 | Zh Zhang | 6 | 6 | ||||||||||||||||||||||||
| R Bemelmans | 3 | 1 | 7 | Zh Zhang | 6 | 7 | |||||||||||||||||||||
| N Sánchez Izquierdo | 6 | 2 | 7 | N Sánchez Izquierdo | 3 | 5 | |||||||||||||||||||||
 A Vatutin | 3 | 6 | 5 | 7 | Zh Zhang | 7 | 6 | ||||||||||||||||||||
| Q | Miguel Damas | 4 | 2 | 4 | F Ferreira Silva | 5 | 3 | ||||||||||||||||||||
| Q | C Sánchez Jover | 6 | 6 | Q | C Sánchez Jover | 3 | 66 | ||||||||||||||||||||
| WC |  S Mansouri | 4 | 2 | 4 | F Ferreira Silva | 6 | 78 | ||||||||||||||||||||
| 4 | F Ferreira Silva | 6 | 6 | 7 | Zh Zhang | 2 | 1 | ||||||||||||||||||||
| 5 | J Sels | 4 | 6 | 6 | 2 | R Carballés Baena | 6 | 6 | |||||||||||||||||||
| Alt | M Jaziri | 6 | 2 | 1 | 5 | J Sels | 1 | 6 | 3 | ||||||||||||||||||
| Alt | M Geerts | 2 | 6 | 6 | Alt | M Geerts | 6 | 4 | 6 | ||||||||||||||||||
| WC | A Ouakaa | 6 | 4 | 1 | Alt | M Geerts | 5 | 1 | |||||||||||||||||||
| WC | M Echargui | 1 | 5 | 2 | R Carballés Baena | 7 | 6 | ||||||||||||||||||||
| Eduard Esteve Lobato | 6 | 7 | E Esteve Lobato | 1 | 1 | ||||||||||||||||||||||
 R Brancaccio | 77 | 0 | 1 | 2 | R Carballés Baena | 6 | 6 | ||||||||||||||||||||
| 2 | R Carballés Baena | 65 | 6 | 6 | |||||||||||||||||||||||
Stanislas Wawrinka was the defending champion, but withdrew before the event started.
Carlos Berlocq won the title, defeating Tomáš Berdych in the final, 0–6, 7–5, 6–1.
David Ferrer was the three-time defending champion, but he chose to compete in Acapulco instead.
Rafael Nadal won the title, defeating Juan Mónaco in the final, 6–4, 6–1.
Richard Gasquet won the title, defeating Nick Kyrgios in the final, 6–3, 6–2.
Pablo Cuevas was the defending champion and successfully defended his title, defeating Pablo Carreño Busta in the final, 7–6(7–4), 6–3.
Roberto Carballés Baena was the defending champion but lost in the quarterfinals to Uladzimir Ignatik.
Víctor Estrella Burgos was the two-time defending champion and successfully defended his title, defeating Paolo Lorenzi in the final, 6–7(2–7), 7–5, 7–6(8–6).
Pablo Cuevas was the defending champion, but lost in the first round to Arthur De Greef.
Pablo Cuevas was the two-time defending champion and successfully defended his title, defeating Albert Ramos Viñolas in the final, 6–7(3–7), 6–4, 6–4.
Defending champion Rafael Nadal defeated Dominic Thiem in the final, 6–4, 6–1 to win the singles tennis title at the 2017 Barcelona Open. It was his record-extending tenth Barcelona Open title.
Diego Schwartzman was the defending champion but chose not to defend his title.
Víctor Estrella Burgos was the three-time defending champion and the tournament's only champion to date, but lost in the second round to Gerald Melzer.
Dominic Thiem was the defending champion, but lost in the quarterfinals to Fernando Verdasco.
Jiří Veselý was the defending champion but lost in the second round to Elias Ymer.
Nicola Kuhn was the defending champion but lost in the first round to Yannick Hanfmann.
Marin Čilić was the defending champion, but lost in the second round to Diego Schwartzman.
Pablo Cuevas was the defending champion but lost in the quarterfinals to Daniel Altmaier.
Matteo Berrettini defeated Aslan Karatsev in the final, 6–1, 3–6, 7–6(7–0) to win the men's singles tennis title at the 2021 Serbia Open.
Daniil Medvedev defeated Sam Querrey in the final, 6–4, 6–2, to win the singles tennis title at the 2021 Mallorca Championships. It was Medvedev's first career grass court final and singles title on the ATP Tour, and he dropped just one set en route to the victory. Querrey was contesting for his first title in four years.
This was the first edition of the tournament.
Pedro Martínez was the defending champion but lost in the first round to Kimmer Coppejans.