Radosław Jedynak is a Polish chess grandmaster and chess coach. Born on January 19, 1969, Jedynak achieved his Grandmaster title in 1992 after ranking 4th in the 1991 Polish Chess Championship and 2nd in 1994. He represented Poland in seven Chess Olympiads from 1992 to 2004 and one European Team Chess Championship in 2001. Jedynak's highest ranking was World No. 154 tie, obtained in July 2000.
As a coach, Jedynak coached the Polish women's national team at the Chess Olympiads of 2008, 2010, and 2012. He also has a background in Civil Engineering which he studied at Poznań University of Technology.
Jedynak has won several major tournaments, including Hastings International Chess Congress in 1991/1992 and Najdorf Memorial in Warsaw in 1996. He was named a senior athletics champion in 2011.