2018 Poznań Open – Doubles
| Doubles | |
|---|---|
| 2018 Poznań Open | |
| Champions |  Mateusz Kowalczyk  Szymon Walków | 
| Runners-up |  Attila Balázs  Andrea Vavassori | 
| Score | 7–5, 6–7(8–10), [10–8] | 
Guido Andreozzi and Jaume Munar were the defending champions but only Andreozzi chose to defend his title, partnering Ariel Behar. Andreozzi lost in the first round to Roberto Maytín and Nathan Pasha.
Mateusz Kowalczyk and Szymon Walków won the title after defeating Attila Balázs and Andrea Vavassori 7–5, 6–7(8–10), [10–8] in the final.
Seeds
 Romain Arneodo / Romain Arneodo / Tristan-Samuel Weissborn (first round) Tristan-Samuel Weissborn (first round)
 Guido Andreozzi / Guido Andreozzi / Ariel Behar (first round) Ariel Behar (first round)
 Tomasz Bednarek / Tomasz Bednarek / Alessandro Motti (first round) Alessandro Motti (first round)
 Attila Balázs / Attila Balázs / Andrea Vavassori (final) Andrea Vavassori (final)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  R Arneodo  T-S Weissborn | 63 | 3 | ||||||||||||||||||||||||
| .svg.png) H Laanksonen  G Panfil | 77 | 6 | .svg.png) H Laanksonen  G Panfil | 5 | 6 | [8] | |||||||||||||||||||||
| WC |  M Kowalczyk  S Walków | 77 | 6 | WC |  M Kowalczyk  S Walków | 7 | 3 | [10] | |||||||||||||||||||
|  T Daniel  B Zapata Miralles | 65 | 1 | WC |  M Kowalczyk  S Walków | 77 | 6 | |||||||||||||||||||||
| 3 |  T Bednarek  A Motti | 2 | 63 | WC |  M Dembek  J Zieliński | 65 | 3 | ||||||||||||||||||||
| WC |  Michał Dembek  J Zieliński | 6 | 77 | WC |  M Dembek  J Zieliński | 6 | 6 | ||||||||||||||||||||
| WC |  VV Cornea  K Drzewiecki | 4 | 5 |  V Estrella Burgos  R Quiroz | 4 | 3 | |||||||||||||||||||||
|  V Estrella Burgos  R Quiroz | 6 | 7 | WC |  M Kowalczyk  S Walków | 7 | 68 | [10] | ||||||||||||||||||||
|  F Neis .svg.png) P Sousa | 6 | 4 | [10] | 4 |  A Balázs  A Vavassori | 5 | 710 | [8] | |||||||||||||||||||
|  A Giannessi  Q Halys | 1 | 6 | [7] |  F Neis .svg.png) P Sousa | 4 | 2 | |||||||||||||||||||||
|  F Bagnis  S Galdós | 4 | 4 | 4 |  A Balázs  A Vavassori | 6 | 6 | |||||||||||||||||||||
| 4 |  A Balázs  A Vavassori | 6 | 6 | 4 |  A Balázs  A Vavassori | 6 | 77 | ||||||||||||||||||||
|  V Uzhylovskyi  A Vatutin | 3 | 61 |  R Maytín  N Pasha | 4 | 63 | ||||||||||||||||||||||
|  O Otte  A Siljeström | 6 | 77 |  O Otte  A Siljeström | ||||||||||||||||||||||||
|  R Maytín  N Pasha | 77 | 1 | [10] |  R Maytín  N Pasha | w/o | ||||||||||||||||||||||
| 2 |  G Andreozzi  A Behar | 65 | 6 | [8] | |||||||||||||||||||||||