Piotr Piechniak (born 9 March 1977) is a Polish former professional footballer who played as a winger.
From 2003 to 2007, Piechniak played for the Poland national football team.
In June 2010, he joined GKS Katowice. He was released one year later.
In July 2011, he signed a one-year contract with Resovia.
Dyskobolia Grodzisk Wlkp.