2018 Challenger La Manche – Doubles
| Doubles | |
|---|---|
| 2018 Challenger La Manche | |
| Champions |  Romain Arneodo  Tristan-Samuel Weissborn | 
| Runners-up |  Antonio Šančić  Ken Skupski | 
| Score | 6–3, 1–6, [10–4] | 
Roman Jebavý and Igor Zelenay were the defending champions but chose not to defend their title.
Romain Arneodo and Tristan-Samuel Weissborn won the title after defeating Antonio Šančić and Ken Skupski 6–3, 1–6, [10–4] in the final.
Seeds
 Antonio Šančić / Antonio Šančić / Ken Skupski (final) Ken Skupski (final)
 Romain Arneodo / Romain Arneodo / Tristan-Samuel Weissborn (champions) Tristan-Samuel Weissborn (champions)
.svg.png) Sander Gillé / Sander Gillé /.svg.png) Joran Vliegen (semifinals) Joran Vliegen (semifinals)
 Mikhail Elgin / Mikhail Elgin / Andreas Siljeström (quarterfinals) Andreas Siljeström (quarterfinals)
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 |  A Šančić  K Skupski | 4 | 6 | [15] | |||||||||||||||||||||||
|  N Lammons  A Lawson | 6 | 4 | [13] | 1 |  A Šančić  K Skupski | 6 | 6 | ||||||||||||||||||||
|  K Krawietz  J O'Mara | 0 | 4 |  M Moraing  O Otte | 3 | 2 | ||||||||||||||||||||||
|  M Moraing  O Otte | 6 | 6 | 1 |  A Šančić  K Skupski | 3 | 77 | [10] | ||||||||||||||||||||
| 3 | .svg.png) S Gillé .svg.png) J Vliegen | 64 | 77 | [10] | 3 | .svg.png) S Gillé .svg.png) J Vliegen | 6 | 64 | [4] | ||||||||||||||||||
|  T Bednarek  G Panfil | 77 | 64 | [4] | 3 | .svg.png) S Gillé .svg.png) J Vliegen | 65 | 6 | [10] | |||||||||||||||||||
|  Joffrey de Schepper  K de Schepper | 5 | 77 | [8] |  G Blancaneaux  R Boutillier | 77 | 2 | [7] | ||||||||||||||||||||
|  G Blancaneaux  R Boutillier | 7 | 64 | [10] | 1 |  A Šančić  K Skupski | 3 | 6 | [4] | |||||||||||||||||||
|  G Borsos  K Majchrzak | 2 |  R Arneodo  T-S Weissborn | 6 | 1 | [10] | ||||||||||||||||||||||
| .svg.png) G Oliveira  G Sakharov | w/o | .svg.png) G Oliveira  G Sakharov | 6 | 1 | [10] | ||||||||||||||||||||||
| .svg.png) R Junaid  T Matsui | 64 | 3 | 4 |  M Elgin  A Siljeström | 3 | 6 | [7] | ||||||||||||||||||||
| 4 |  M Elgin  A Siljeström | 77 | 6 | .svg.png) G Oliveira  G Sakharov | |||||||||||||||||||||||
|  J Munar  C Taberner | 2 |  R Arneodo  T-S Weissborn | w/o | ||||||||||||||||||||||||
|  B Bonzi  C Lestienne | w/o |  B Bonzi  C Lestienne | 6 | 1 | [6] | ||||||||||||||||||||||
|  Caio Silva  Thales Turini | 3 | 2 | 2 |  R Arneodo  T-S Weissborn | 3 | 6 | [10] | ||||||||||||||||||||
| 2 |  R Arneodo  T-S Weissborn | 6 | 6 | ||||||||||||||||||||||||