2018 St. Petersburg Open – Doubles
# 2018 St. Petersburg Open – Doubles

Roman Jebavý and Matwé Middelkoop were the defending champions, but lost in the final to Matteo Berrettini and Fabio Fognini, $6–7^{(6–8)},$ $6–7^{(4–7)}.$

## Seeds

* Dominic Inglot / Franko Škugor (first round)
* Julio Peralta / Horacio Zeballos (semifinals)
* Roman Jebavý / Matwé Middelkoop (final)
* Robert Lindstedt / Rajeev Ram (first round)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

| First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | D Inglot F Škugor | $6^5$ | $6^5$ | | | | | | | | | | | | | | |
| | L Paes MÁ Reyes-Varela | $7^7$ | $7^7$ | | | L Paes MÁ Reyes-Varela | $6^4$ | 3 | | | | | | | | | |
| | M Berrettini F Fognini | 2 | 6 | [10] | | M Berrettini F Fognini | $7^7$ | 6 | | | | | | | | | |
| | A Rublev D Shapovalov | 6 | 2 | [5] | | | | | | M Berrettini F Fognini | $7^7$ | 6 | | | | | |
| 4 | R Lindstedt R Ram | 3 | 6 | [6] | | | | | | M Mirnyi P Oswald | $6^5$ | 3 | | | | | |
| | E Donskoy K Khachanov | 6 | 1 | [10] | | E Donskoy K Khachanov | $6^2$ | $6^1$ | | | | | | | | | |
| | M Mirnyi P Oswald | 6 | $7^7$ | | | M Mirnyi P Oswald | $7^7$ | $7^7$ | | | | | | | | | |
| | M Bašić D Džumhur | 3 | $6^1$ | | | | | | | | | | | | M Berrettini F Fognini | $7^8$ | $7^7$ |
| PR | P Petzschner T Pütz | 6 | 6 | | | | | | | | | | | 3 | R Jebavý M Middelkoop | $6^6$ | $6^4$ |
| | D Bracciali M Cecchinato | 2 | 0 | | PR | P Petzschner T Pütz | 1 | 4 | | | | | | | | | |
| | M Matkowski N Monroe | 4 | 4 | | 3 | R Jebavý M Middelkoop | 6 | 6 | | | | | | | | | |
| 3 | R Jebavý M Middelkoop | 6 | 6 | | | | | | 3 | R Jebavý M Middelkoop | $7^7$ | 1 | [10] | | | | |
| WC | M Elgin D Istomin | 6 | 6 | | | | | | 2 | J Peralta H Zeballos | $6^4$ | 6 | [8] | | | | |
| WC | T Gabashvili E Karlovskiy | 3 | 3 | | WC | M Elgin D Istomin | | | | | | | | | | | |
| | A Begemann J-L Struff | 6 | 5 | [8] | 2 | J Peralta H Zeballos | w/o | | | | | | | | | | |
| 2 | J Peralta H Zeballos | 4 | 7 | [10] | | | | | | | | | | | | | |
