| Date: | 20–26 July |
| Edition: | 34th (men) 9th (women) |
| Category: | ATP Challenger Tour ITF Women's Circuit |
| Location: | Tampere, Finland |
| Surface: | Clay |
| Prize Money: | €42,500 (men) $10,000 (women) |
| Champms: |  Tristan Lamasine |
| Champmd: |  André Ghem / Tristan Lamasine |
| Champws: |  Lilla Barzó |
| Champwd: | Nora Niedmers /  Hélène Scholsen |
The 2015 Tampere Open was a professional tennis tournament played on clay courts. It was the 34th edition of the tournament which was part of the 2015 ATP Challenger Tour and the 2015 ITF Women's Circuit. It took place in Tampere, Finland, on 20–26 July 2015.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Finland | Jarkko Nieminen | 91 | 1 | |
| France | Lucas Pouille | 94 | 2 | |
 Austria | Jürgen Melzer | 129 | 3 | |
| Brazil | Andre Ghem | 131 | 4 | |
 Estonia | Jürgen Zopp | 153 | 5 | |
| Belgium | Germain Gigounon | 191 | 6 | |
| France | Calvin Hemery | 211 | 7 | |
| Andreas Beck | 218 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry with a protected ranking:
The following players received entry from the qualifying draw:
Harri Heliövaara Axel Michon Anton Pavlov
Alexander VasilenkoThe following player received entry as a lucky loser:
Ristomatti Lanne| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Bosnia and Herzegovina | Dea Herdželaš | 421 | 1 | |
 Romania | Cristina Ene | 460 | 2 | |
| Hungary | Lilla Barzó | 530 | 3 | |
| Russian Federation | Alena Tarasova | 569 | 4 | |
 Sweden | Jacqueline Cabaj Awad | 590 | 5 | |
| Karen Barbat | 660 | 6 | ||
| Julia Wachaczyk | 674 | 7 | ||
| Belgium | Hélène Scholsen | 686 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Natalia Belova Polina Golubovskaya Mariella Minetti Tatiana Nikolaeva 
Helen Parish Saana Saarteinen 
Sabrina Santamaria Rosalie van der HoekSee main article: 2015 Tampere Open – Men's singles.
Tristan Lamasine def. André Ghem, 6–3, 6–2 Lilla Barzó def. Karen Barbat, 6–2, 6–4See main article: 2015 Tampere Open – Men's doubles.
André Ghem / Tristan Lamasine def. Harri Heliövaara / Patrik Niklas-Salminen, 7–6(7–5), 7–6(7–4) Hélène Scholsen def. Cristina Ene / Dea Herdželaš, 6–4, 7–6(7–5)