The 2015 Poznań Open was a professional tennis tournament played on clay courts. It was the twelfth edition of the tournament which was part of the 2015 ATP Challenger Tour. It took place at the Park Tenisowy Olimpia in Poznań, Poland from 11 to 19 July 2015, including the qualifying competition in the first two days. The tournament had its prize money increased to €64,000 + Hospitality, and thus offered 100 ATP Ranking points for singles and doubles winners.