Sander Gillé and Joran Vliegen were the defending champions but only Vliegen chose to defend his title, partnering Rameez Junaid. Vliegen lost in the quarterfinals to Pedro Martínez and David Vega Hernández.
| Doubles | |
|---|---|
| 2018 Open Sopra Steria de Lyon | |
| Champions |  Elliot Benchetrit Geoffrey Blancaneaux |
| Runners-up |  Hsieh Cheng-peng Luca Margaroli |
| Score | 6–3, 4–6, [10–7] |
Elliot Benchetrit and Geoffrey Blancaneaux won the title after defeating Hsieh Cheng-peng and Luca Margaroli 6–3, 4–6, [10–7] in the final.
Seeds edit
Denys Molchanov / 
Igor Zelenay (semifinals)
Ruan Roelofse / 
Christopher Rungkat (quarterfinals)
Rameez Junaid / 
Joran Vliegen (quarterfinals)
Hsieh Cheng-peng / 
Luca Margaroli (final)
Draw edit
Key edit
- 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 | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 |  D Molchanov I Zelenay
| 6 | 6 | ||||||||||||||||||||||||
 C Garín M Krueger
| 3 | 2 | 1 | D Molchanov I Zelenay
| 6 | 6 | |||||||||||||||||||||
 R Maytín A Siljeström
| 5 | 6 | [10] | R Maytín A Siljeström
| 2 | 4 | |||||||||||||||||||||
| WC | B Bonzi G Jacq
| 7 | 3 | [3] | 1 | D Molchanov I Zelenay
| 7 | 68 | [6] | ||||||||||||||||||
| 4 | C-p Hsieh L Margaroli
| 6 | 6 | 4 | C-p Hsieh L Margaroli
| 5 | 710 | [10] | |||||||||||||||||||
G Sakharov A Vatutin
| 2 | 1 | 4 | C-p Hsieh L Margaroli
| 78 | 4 | [10] | ||||||||||||||||||||
 B Saraiva P Sousa
| 5 | 7 | [10] | B Saraiva P Sousa
| 66 | 6 | [5] | ||||||||||||||||||||
 I Sabanov M Sabanov
| 7 | 5 | [8] | 4 | C-p Hsieh L Margaroli
| 3 | 6 | [7] | |||||||||||||||||||
 P Martínez D Vega Hernández
| 6 | 6 | WC | E Benchetrit G Blancaneaux
| 6 | 4 | [10] | ||||||||||||||||||||
| K de Schepper T Lamasine
| 2 | 4 | P Martínez D Vega Hernández
| 1 | 7 | [10] | |||||||||||||||||||||
 G Escobar F Neis
| 6 | 66 | [8] | 3 |  R Junaid J Vliegen
| 6 | 5 | [3] | |||||||||||||||||||
| 3 | R Junaid J Vliegen
| 2 | 78 | [10] | P Martínez D Vega Hernández
| 3 | 6 | [3] | |||||||||||||||||||
| WC | Alexandre Favrot Q Halys
| 2 | 4 | WC | E Benchetrit G Blancaneaux
| 6 | 3 | [10] | |||||||||||||||||||
| WC | E Benchetrit G Blancaneaux
| 6 | 6 | WC | E Benchetrit G Blancaneaux
| 6 | 3 | [10] | |||||||||||||||||||
 H Hach Verdugo LD Martínez
| 6 | 4 | [4] | 2 |  R Roelofse C Rungkat
| 3 | 6 | [3] | |||||||||||||||||||
| 2 | R Roelofse C Rungkat
| 4 | 6 | [10] | |||||||||||||||||||||||