| Doubles | |
|---|---|
| 2015 Marburg Open | |
| Champion |  Wesley Koolhof Matwé Middelkoop |
| Runner-up |  Tobias Kamke Simon Stadler |
| Final score | 6–1, 7–5 |
Jaroslav Pospíšil and Franko Škugor were the defending champions, but they did not participate this year.
Wesley Koolhof and Matwé Middelkoop won the title, defeating Tobias Kamke and Simon Stadler in the final, 6–1, 7–5.
Wesley Koolhof / Matwé Middelkoop (champions)
Roman Jebavý / Jan Šátral (semifinals)
Ruben Gonzales / 
Ruan Roelofse (first round)
Andrey Golubev / 
Alexandre Sidorenko (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | W Koolhof M Middelkoop | 5 | |||||||||||||||||||||||||
| WC | J Choinski Jannis Kahlke | 0r | 1 | W Koolhof M Middelkoop | 6 | 6 | |||||||||||||||||||||
 P Krstin  G Lapentti | WC | Y Hanfmann J Lenz | 1 | 4 | |||||||||||||||||||||||
| WC | Y Hanfmann J Lenz | w/o | 1 | W Koolhof M Middelkoop | 6 | 6 | |||||||||||||||||||||
| 4 | A Golubev A Sidorenko | 6 | 6 | 4 | A Golubev A Sidorenko | 3 | 4 | ||||||||||||||||||||
 M Authom J Inzerillo | 2 | 1 | 4 | A Golubev A Sidorenko | 3 | 6 | [12] | ||||||||||||||||||||
| P-H Mathieu A Michon | 2 | 6 | [4] |  Í Cervantes P Riba | 6 | 3 | [10] | ||||||||||||||||||||
| Í Cervantes P Riba | 6 | 3 | [10] | 1 | W Koolhof M Middelkoop | 6 | 7 | ||||||||||||||||||||
 U Ignatik  J Kovalík | 4 | 2 | PR | T Kamke S Stadler | 1 | 5 | |||||||||||||||||||||
| A Beck T Pütz | 6 | 6 | A Beck T Pütz | 3 | 2 | ||||||||||||||||||||||
| PR | T Kamke S Stadler | 6 | 6 | PR | T Kamke S Stadler | 6 | 6 | ||||||||||||||||||||
| 3 | R Gonzales R Roelofse | 3 | 4 | PR | T Kamke S Stadler | 6 | 6 | ||||||||||||||||||||
 T Daniel  R Olivo | 6 | 6 | 2 | R Jebavý J Šátral | 2 | 4 | |||||||||||||||||||||
| WC | Jan Beusch L Magdinčev | 4 | 1 | T Daniel R Olivo | 6 | 4 | [5] | ||||||||||||||||||||
I Bozoljac  J Zopp | 2 | 4 | 2 | R Jebavý J Šátral | 2 | 6 | [10] | ||||||||||||||||||||
| 2 | R Jebavý J Šátral | 6 | 6 | ||||||||||||||||||||||||
Roman Jebavý and Jaroslav Pospíšil were the defending champions, but Pospíšil did not participate this year. Jebavý played alongside Jan Šátral, but they lost in quarterfinals to Lubomír Majšajdr and Martin Zahrádka.
Top seeds Wesley Koolhof and Matwé Middelkoop won the title, beating Gero Kretschmer and Alexander Satschko 6–3, 7–6(7–1)
Tobias Kamke and Philipp Marx were the defending champions, but chose not to defend their title. Unseeded pair Andrea Arnaboldi and Antonio Šančić won the title defeating Wesley Koolhof and Matwé Middelkoop in the final 6–4, 2–6, [14–12].
This was the first edition of the tournament, Wesley Koolhof and Matwé Middelkoop won the title defeating Ken Skupski and Neal Skupski in the final 3–6, 6–4, [10–6].
This was the first edition of the tournament.
Marcus Daniell and Marcelo Demoliner were the defending champions, but played with different partners. Daniell partnered Dennis Novikov while Demoliner played with Aisam-ul-Haq Qureshi. Daniell lost in the first round to Johan Brunström and Andreas Siljeström. Demoliner also failed to defend his title, losing in the final to Wesley Koolhof and Matwé Middelkoop 7–6(7–5), 0–6, [10–8].
Nicolás Almagro and Carlos Berlocq were the defending champions, but Almagro chose not to participate this year and Berlocq chose to compete in Umag instead.
Ariel Behar and Eduardo Dischinger were the defending champions, but Dischinger decided not to defend his title so Behar partnered Dino Marcan instead. Behar lost in the quarterfinals to Tallon Griekspoor and Tim van Rijthoven.
Wesley Koolhof and Matwé Middelkoop were the defending champions but lost in the quarterfinals to Sander Arends and Adam Majchrowicz.
Dmitry Tursunov and Andrey Rublev were the defending champions, but Tursunov chose not to participate this year. Rublev played alongside Daniil Medvedev, but lost in the semifinals to Julian Knowle and Jürgen Melzer.
Ilija Bozoljac and Igor Zelenay were the defending champions but chose not to defend their title.
Wesley Koolhof and Matwé Middelkoop were the defending champions, but they lost in first round to Ken and Neal Skupski.
Nicolas Mahut and Vasek Pospisil were the defending champions, but Pospisil chose not to participate this year. Mahut played alongside Pierre-Hugues Herbert, but lost in the semifinals to Ivan Dodig and Marcel Granollers.
Oliver Marach and Philipp Oswald were the defending champions but chose not to defend their title.
Raven Klaasen and Rajeev Ram were the two-time defending champions, but lost to Alexander Zverev and Mischa Zverev in the semifinals.
Wesley Koolhof and Matwé Middelkoop were the defending champions, but Koolhof chose to compete in Los Cabos instead. Middelkoop played alongside Julian Knowle, but lost in the semifinals to Hans Podlipnik-Castillo and Andrei Vasilevski.
Wesley Koolhof and Matwé Middelkoop were the defending champions, but chose to compete with different partners in Auckland instead.
Brian Baker and Nikola Mektić were the defending champions, but Baker chose not to participate this year. Mektić played alongside Alexander Peya, but lost in the first round to Wesley Koolhof and Artem Sitak.
John Peers and Michael Venus were the defending champions, but they chose not to participate.
Nikola Mektić and Mate Pavić were the defending champions, but lost in the first round to Robin Haase and Matwé Middelkoop.