The 2005 Idea Prokom Open was the eighth edition of this men's tennis tournament and was played on outdoor clay courts. The tournament was part of the International Series of the 2005 ATP Tour. It took place in Sopot, Poland from 1 August through 7 August 2005. Unseeded Gaël Monfils won the singles title.
See main article: 2005 Idea Prokom Open – Singles. Gaël Monfils defeated Florian Mayer, 7–6(8–6), 4–6, 7–5[1]
See main article: 2005 Idea Prokom Open – Doubles. Mariusz Fyrstenberg / Marcin Matkowski defeated Lucas Arnold Ker / Sebastián Prieto, 7–6(9–7), 6–4