| Doubles | |
|---|---|
| 2015 Pekao Szczecin Open | |
| Champions |  Tristan Lamasine Fabrice Martin |
| Runners-up |  Federico Gaio Alessandro Giannessi |
| Final score | 6–3, 7–6(7–4) |
Dustin Brown and Jan-Lennard Struff are the defending champions, but only Struff defended his title partnering Frank Moser.
František Čermák / 
Artem Sitak (semifinals)
Ken Skupski / Neal Skupski (first round)
Frank Moser / Jan-Lennard Struff (quarterfinals) Alessandro Motti / 
Costin Pavăl (first round)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | F Čermák A Sitak | 77 | 6 | ||||||||||||||||||||||||
| J Mertl M Michalička | 63 | 2 | 1 | F Čermák A Sitak | 6 | 6 | |||||||||||||||||||||
 M Gawron A Kapaś | 6 | 5 | [5] |  R Frantzen R Haase | 1 | 4 | |||||||||||||||||||||
| Romano Frantzen R Haase | 2 | 7 | [10] | 1 | F Čermák A Sitak | 66 | 4 | ||||||||||||||||||||
| 3 | F Moser J-L Struff | 6 | 6 | T Lamasine F Martin | 78 | 6 | |||||||||||||||||||||
| WC | Filip Ambrozy M Fornell | 0 | 0 | 3 | F Moser J-L Struff | 4 | 2 | ||||||||||||||||||||
| WC | H Hurkacz S Walków | 5 | 3 | T Lamasine F Martin | 6 | 6 | |||||||||||||||||||||
| T Lamasine F Martin | 7 | 6 | T Lamasine F Martin | 6 | 77 | ||||||||||||||||||||||
| F Gaio A Giannessi | 6 | 6 | F Gaio A Giannessi | 3 | 64 | ||||||||||||||||||||||
| WC | K Majchrzak J Zieliński | 3 | 2 | F Gaio A Giannessi | 7 | 6 | |||||||||||||||||||||
| A Arnaboldi M Cecchinato | 6 | 77 | A Arnaboldi M Cecchinato | 5 | 2 | ||||||||||||||||||||||
| 4 | A Motti C Pavăl | 3 | 63 | F Gaio A Giannessi | 7 | 77 | |||||||||||||||||||||
 V Ivanov M Teixeira | 6 | 4 | [12] | T Bednarek M Kowalczyk | 5 | 65 | |||||||||||||||||||||
 R Olivo  F Romboli | 4 | 6 | [10] | V Ivanov M Teixeira | 4 | 62 | |||||||||||||||||||||
| T Bednarek M Kowalczyk | 2 | 6 | [10] | T Bednarek M Kowalczyk | 6 | 77 | |||||||||||||||||||||
| 2 | K Skupski N Skupski | 6 | 4 | [8] | |||||||||||||||||||||||
Two-time defending champion Rafael Nadal successfully defended his title, defeating Nicolás Almagro in the final, 6–4, 6–3. It was his record-extending eighth Barcelona Open title.
Lukáš Dlouhý and Michail Elgin were the defending champions but Dlouhy chose not to compete.
Elgin partnered with Michal Mertiňák and was defeated by losing finalist Gero Kretschmer and Jan-Lennard Struff, who in turn lost to Henri Kontinen and Andreas Siljeström.
Tommy Haas was the defending champion but lost to Martin Kližan in the semifinals.
Kližan went on to win the title, defeating Fabio Fognini in the final, 2–6, 6–1, 6–2.
Ken Skupski and Neal Skupski were the defending champions, but lost in the semifinals to Tomasz Bednarek and Igor Zelenay.
Marin Draganja and Florin Mergea were the defending champions, but Mergea decided not to participate this year. Draganja paired up with Henri Kontinen, but lost in the first round to Martin Kližan and Lukáš Rosol.
Jamie Murray and John Peers won the title, defeating Juan Sebastián Cabal and Robert Farah in the final, 2–6, 6–3, [10–8].
David Goffin was the defending champion, but withdrew before the tournament began.
Andy Murray was the defending champion, but chose not to participate.
David Ferrer won the title, defeating Steve Johnson in the final, 4–6, 6–4, 7–5.
Flavio Cipolla and Dominik Meffert were the defending champions, but chose not to participate.
Taro Daniel was the defending champion but failed to defend his title, losing to Thiago Monteiro in the second round.
Illya Marchenko was the defending champion but lost in the second round to Vincent Millot.
David Ferrer was the defending champion, but withdrew from his semifinal match against Andy Murray.
Paolo Lorenzi was the defending champion, but lost in the second round to João Sousa.
Andre Begemann and Jan-Lennard Struff were the defending champions but chose not to defend their title.
Jean-Julien Rojer and Horia Tecău were the defending champions, and successfully defended their title, defeating James Cerretani and Leander Paes in the final, 6–2, 7–6(7–2).
Ben McLachlan and Yasutaka Uchiyama were the defending champions but chose not to participate together. McLachlan played alongside Jan-Lennard Struff and successfully defended the title, defeating Raven Klaasen and Michael Venus in the final, 6–4, 7–5. Uchiyama teamed up with Joe Salisbury, but lost in the semifinals to Klaasen and Venus.
Henri Kontinen and John Peers were the defending champions but lost in the first round to Kyle Edmund and Neal Skupski.
Nicolas Mahut and Édouard Roger-Vasselin were the defending champions, but lost in the final to Robert Lindstedt and Jan-Lennard Struff, 6–2, 6–7(1–7), [4–10].
Jérémy Chardy and Henri Kontinen were the defending champions, but Chardy chose not to participate this year.
Rajeev Ram and Joe Salisbury were the defending champions, but lost in the quarterfinals to John Peers and Michael Venus.
Tim Pütz and Michael Venus won the title, defeating Nikola Mektić and Mate Pavić in the final, 6–3, 6–7(5–7), [16–14], saving three championship points, in the process.