Andrea Hlaváčková and Lucie Hradecká were the defending champions, but decided not to compete together. Hradecká partnered with Barbora Krejčíková, but lost in the quarterfinals to Bianca Andreescu and Carson Branstine. Hlaváčková partnered with Tímea Babos and successfully defended her title, defeating Andreescu and Branstine 6–3, 6–1 in the final.
| Doubles | |
|---|---|
| 2017 Coupe Banque Nationale | |
| Champions |  Tímea Babos  Andrea Hlaváčková |
| Runners-up |  Bianca Andreescu Carson Branstine |
| Score | 6–3, 6–1 |
Seeds edit
Tímea Babos / 
Andrea Hlaváčková (champions)- Lucie Hradecká / Barbora Krejčíková (quarterfinals)
Xenia Knoll / 
Alla Kudryavtseva (first round, retired)
Naomi Broady / 
Asia Muhammad (quarterfinals)
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 | T Babos A Hlaváčková
| 6 | 6 | ||||||||||||||||||||||||
| Alt |  UM Arconada C Dolehide
| 2 | 2 | 1 | T Babos A Hlaváčková
| 6 | 6 | ||||||||||||||||||||
| D Krawczyk J Loeb
| 7 | 6 | D Krawczyk J Loeb
| 3 | 3 | ||||||||||||||||||||||
| T Townsend C Zhao
| 5 | 1 | 1 | T Babos A Hlaváčková
| 6 | 6 | |||||||||||||||||||||
| 4 |  N Broady A Muhammad
| 6 | 78 |  M Irigoyen C Rosatello
| 3 | 2 | |||||||||||||||||||||
 M Erakovic J Glushko
| 1 | 66 | 4 | N Broady A Muhammad
| 65 | 66 | |||||||||||||||||||||
| M Irigoyen C Rosatello
| 4 | 6 | [10] | M Irigoyen C Rosatello
| 77 | 78 | |||||||||||||||||||||
 V Golubic A Sadiković
| 6 | 4 | [3] | 1 | T Babos A Hlaváčková
| 6 | 6 | ||||||||||||||||||||
| A Tatishvili S Vickery
| 3 | 65 | WC | B Andreescu C Branstine
| 3 | 1 | |||||||||||||||||||||
K Christian G Olmos
| 6 | 77 | K Christian G Olmos
| 62 | 3 | ||||||||||||||||||||||
| I Falconi F Stollár
| 2 | I Falconi F Stollár
| 77 | 6 | |||||||||||||||||||||||
| 3 | X Knoll A Kudryavtseva
| 1r | I Falconi F Stollár
| 66 | 4 | ||||||||||||||||||||||
 A Guarachi A Weinhold
| 3 | 4 | WC | B Andreescu C Branstine
| 78 | 6 | |||||||||||||||||||||
| WC | B Andreescu C Branstine
| 6 | 6 | WC | B Andreescu C Branstine
| 4 | 6 | [10] | |||||||||||||||||||
| S Kenin V Lepchenko
| 4 | 4 | 2 | L Hradecká B Krejčíková
| 6 | 3 | [7] | ||||||||||||||||||||
| 2 | L Hradecká B Krejčíková
| 6 | 6 | ||||||||||||||||||||||||