| Date: | September 14 – September 20 |
| Edition: | 23rd |
| Category: | WTA International |
| Draw: | 32S (24Q) / 16D (0Q) |
| Surface: | Carpet – indoors |
| Location: | Quebec City, Canada |
| Venue: | PEPS de l'Université Laval |
| Champs: | Annika Beck |
| Champd: |  Barbora Krejčíková /  An-Sophie Mestach |
| Main Name: | Tournoi de Québec |
The 2015 Coupe Banque Nationale was a tennis tournament played on indoor carpet courts. It was the 23rd edition of the Tournoi de Québec and part of the WTA International tournaments of the 2015 WTA Tour. It took place at the PEPS de l'Université Laval in Quebec City, Canada, from September 14 through September 20, 2015.
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q | Q2 | Q1 |
| Singles[1] [2] | 280 | 180 | 110 | 60 | 30 | 1 | 18 | 12 | 1 |
|---|---|---|---|---|---|---|---|---|---|
| Doubles[3] | 1 |
| Event | W | F | SF | QF | Round of 16 | Round of 32 | Q2 | Q1 | |
| Singles | $43,000 | $21,400 | $11,500 | $6,175 | $3,400 | $2,100 | $1,020 | $600 | |
| Doubles | $12,300 | $6,400 | $3,435 | $1,820 | $960 |
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 United States | ||||
| Mirjana Lučić-Baroni | 48 | 2 | ||
| Mona Barthel | 53 | 3 | ||
| Czech Republic | Lucie Hradecká | 56 | 4 | |
| Annika Beck | 62 | 5 | ||
| Tatjana Maria | 66 | 6 | ||
 Russian Federation | Evgeniya Rodina | 94 | 7 | |
| Belgium | An-Sophie Mestach | 102 | 8 |
The following players received wildcards into the singles main draw:
The following player entered the singles main draw with a protected ranking:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
Vitalia Diatchenko →replaced by Alla Kudryavtseva Edina Gallovits-Hall →replaced by 
Paula Kania
Olga Govortsova →replaced by Barbora Krejčíková Madison Keys →replaced by 
Nadiia Kichenok Klára Koukalová →replaced by 
Naomi Broady Bethanie Mattek-Sands →replaced by 
María Irigoyen Lesia Tsurenko →replaced by Sachia Vickery
Françoise Abanda (neck injury)| Country | Player | Country | Player | Rank1 | Seed | |
|---|---|---|---|---|---|---|
| Ukraine | Lyudmyla Kichenok | Ukraine | Nadiia Kichenok | 130 | 1 | |
| Tatjana Maria | United States | Anna Tatishvili | 173 | 2 | ||
| Argentina | María Irigoyen | Poland | Paula Kania | 173 | 3 | |
| United States | Asia Muhammad | United States | Maria Sanchez | 185 | 4 |
The following pair received wildcards into the doubles main draw:
See main article: 2015 Coupe Banque Nationale – Singles.
See main article: 2015 Coupe Banque Nationale – Doubles.
Barbora Krejčíková / An-Sophie Mestach def. María Irigoyen / Paula Kania, 4–6, 6–3, [12–10]
