| Singles | |
|---|---|
| 2017 Città di Como Challenger | |
| Champion |  Pedro Sousa |
| Runner-up |  Marco Cecchinato |
| Score | 1–6, 6–2, 6–4 |
Kenny de Schepper was the defending champion but lost in the quarterfinals to Pedro Sousa.
Sousa won the title after defeating Marco Cecchinato 1–6, 6–2, 6–4 in the final.
Marco Cecchinato (final)
Jerzy Janowicz (second round)
Filip Krajinović (semifinals) Pedro Sousa (champion)
Roberto Carballés Baena (withdrew) Guillermo García López (second round)
Oscar Otte (quarterfinals)
Kenny de Schepper (quarterfinals)| Semifinals | Final | ||||||||||||
| 1 | Marco Cecchinato | 5 | 6 | 6 | |||||||||
| 3 | Filip Krajinović | 7 | 2 | 3 | |||||||||
| 1 | Marco Cecchinato | 6 | 2 | 4 | |||||||||
| 4 | Pedro Sousa | 1 | 6 | 6 | |||||||||
| 4 | Pedro Sousa | 4 | 6 | 6 | |||||||||
| Q | Corentin Moutet | 6 | 4 | 4 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | M Cecchinato | 6 | 6 | ||||||||||||||||||||||||
| G Oliveira | 1 | 2 | 1 | M Cecchinato | 6 | 6 | |||||||||||||||||||||
| WC | Riccardo Balzerani | 7 | 6 | WC | R Balzerani | 2 | 0 | ||||||||||||||||||||
| WC | Alessandro Coppini | 5 | 3 | 1 | M Cecchinato | 6 | 6 | ||||||||||||||||||||
| Jeremy Jahn | 6 | 6 | 7 | O Otte | 3 | 2 | |||||||||||||||||||||
 S Diez | 1 | 2 | J Jahn | 4 | 6 | 3 | |||||||||||||||||||||
| WC | J Ocleppo | 61 | 0 | 7 | O Otte | 6 | 2 | 6 | |||||||||||||||||||
| 7 | O Otte | 77 | 6 | 1 | M Cecchinato | 5 | 6 | 6 | |||||||||||||||||||
| 3 | F Krajinović | 6 | 6 | 3 | F Krajinović | 7 | 2 | 3 | |||||||||||||||||||
 D Popko | 1 | 1 | 3 | F Krajinović | 6 | 2 | |||||||||||||||||||||
| Q | C Lestienne | 4 | 2 | M Bourgue | 2 | 0r | |||||||||||||||||||||
| M Bourgue | 6 | 6 | 3 | F Krajinović | 66 | 6 | 6 | ||||||||||||||||||||
| S Napolitano | 77 | 3 | 3 | G Elias | 78 | 2 | 3 | ||||||||||||||||||||
| G Elias | 63 | 6 | 6 | G Elias | 7 | 6 | |||||||||||||||||||||
| F Auger-Aliassime | 6 | 6 | F Auger-Aliassime | 5 | 4 | ||||||||||||||||||||||
| Q | Gianluca Di Nicola | 1 | 4 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | K de Schepper | 77 | 6 | ||||||||||||||||||||||||
| LL | F Gaio | 62 | 2 | 8 | K de Schepper | 6 | 6 | ||||||||||||||||||||
| D Masur | 2 | 2 | T Robredo | 3 | 3 | ||||||||||||||||||||||
| T Robredo | 6 | 6 | 8 | K de Schepper | 3 | 4 | |||||||||||||||||||||
| A Arnaboldi | 6 | 6 | 4 | P Sousa | 6 | 6 | |||||||||||||||||||||
| S Caruso | 2 | 4 | A Arnaboldi | 6 | 3 | 2 | |||||||||||||||||||||
| SE |  E Ymer | 4 | 0 | 4 | P Sousa | 3 | 6 | 6 | |||||||||||||||||||
| 4 | P Sousa | 6 | 6 | 4 | P Sousa | 4 | 6 | 6 | |||||||||||||||||||
| 6 | G García López | 77 | 3 | Q | C Moutet | 6 | 4 | 4 | |||||||||||||||||||
| J Munar | 65 | 0r | 6 | G García López | 4 | 3 | |||||||||||||||||||||
| Q | C Moutet | 6 | 6 | Q | C Moutet | 6 | 6 | ||||||||||||||||||||
 T Gabashvili | 2 | 4 | Q | C Moutet | 3 | 7 | 6 | ||||||||||||||||||||
| WC | M Donati | 5 | 6 | 6 | WC | M Donati | 6 | 5 | 3 | ||||||||||||||||||
| Q |  Lenny Hampel | 7 | 2 | 3 | WC | M Donati | 77 | 77 | |||||||||||||||||||
| LL | K Majchrzak | 3 | 4 | 2 | J Janowicz | 65 | 61 | ||||||||||||||||||||
| 2 | J Janowicz | 6 | 6 | ||||||||||||||||||||||||
Jesse Huta Galung was the defending champion, but chose to compete at the 2014 Dubai Tennis Championships instead.
Kenny de Schepper won the title, defeating Norbert Gomboš in the final, 3–6, 6–2, 6–3.
Gilles Simon was the defending champion, but withdrew with a right wrist injury before the tournament began.
Roberto Bautista Agut was the defending champion, but lost in the second round to Nicolas Mahut.
Pablo Andújar was the defending champion, but lost to Thomaz Bellucci in the quarterfinals.
Richard Gasquet was the defending champion and successfully defended his title, defeating Paul-Henri Mathieu in the final, 7–5, 6–4.
Martin Kližan was the defending champion, but withdrew before the tournament began.
Rafael Nadal defeated the two-time defending champion Kei Nishikori in the final, 6–4, 7–5 to win the singles title at the 2016 Barcelona Open. It was Nadal's record-extending ninth title at the Barcelona Open and his 49th clay court title, equaling Guillermo Vilas' record for the most titles on clay.
Richard Gasquet was the defending champion, but chose not to participate this year.
Andrey Kuznetsov was the defending champion but chose not to defend his title.
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.
Fabio Fognini was the defending champion, but lost in the quarterfinals to lucky loser Andrey Rublev.
Jan Šátral was the defending champion but chose not to defend his title.
Ruben Bemelmans was the defending champion but withdrew as he qualified for the 2018 Australian Open.
Dominic Thiem was the defending champion, but lost in the quarterfinals to Fernando Verdasco.
Rogério Dutra Silva was the defending champion but lost in the quarterfinals to Carlos Gómez-Herrera.
This was the first edition of the tournament.
Andrey Rublev was the defending champion, but lost in the quarterfinals to Robin Haase. This was Rublev's first tournament back on tour after missing three months due to a stress fracture in his back.
Diego Schwartzman was the defending champion, but he retired in the first round against Pablo Cuevas.
Thiago Monteiro was the defending champion and successfully defended his title, defeating Marco Cecchinato 7–6(7–3), 6–7(6–8), 7–5 in the final.
Marco Cecchinato was the defending champion, but lost in the first round to Roberto Carballés Baena.