| Date: | 27 July–2 August |
| Edition: | 2nd |
| Category: | ITF Women's Circuit |
| Location: | Sobota, Poland |
| Prize Money: | $75,000 |
| After Year: | no |
| Champs: |  Petra Cetkovská |
| Champd: | Kiki Bertens / Richèl Hogenkamp |
The 2015 Powiat Poznański Open was a professional tennis tournament played on outdoor clay courts. It was the second edition of the tournament and part of the 2015 ITF Women's Circuit, offering a total of $75,000 in prize money. It took place in Sobota, Poland, on 27 July–2 August 2015.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Sesil Karatantcheva | 96 | 1 | ||
| Kiki Bertens | 114 | 2 | ||
| Richèl Hogenkamp | 121 | 3 | ||
| Jeļena Ostapenko | 131 | 4 | ||
 Slovakia | Kristína Kučová | 135 | 5 | |
 Tunisia | Ons Jabeur | 138 | 6 | |
| Romina Oprandi | 141 | 7 | ||
| Czech Republic | Barbora Krejčíková | 145 | 8 |
The following players received wildcards into the singles main draw:
Magdalena Fręch
Natalie Suk Nicole VaidišováThe following players received entry from the qualifying draw:
Ekaterina Alexandrova Martina Borecká
Cristina Dinu
Chloé PaquetSee main article: 2015 Powiat Poznański Open – Singles.
Petra Cetkovská def. Jeļena Ostapenko, 3–6, 7–5, 6–2See main article: 2015 Powiat Poznański Open – Doubles.
Cornelia Lister / Jeļena Ostapenko, 7–6(7–2), 6–4