Mariusz Piekarski (born 22 March 1975) is a Polish football agent and former player who played as a midfielder.

Born in Białystok, Piekarski moved to Brazil with fellow countryman Krzysztof Nowak in 1996 to play for Atlético Paranaense.

After one year, he joined Flamengo where he stayed for five months, also playing for Mogi Mirim before returning to Europe.

[2] In 2003, he was charged with bigamy[3] after marrying a second wife before he was legally divorced from former Miss Brasil Kelley Vieira, who he met when playing in the South American country.

He played twice for Poland in friendly matches, making his debut in a 4–0 loss to Paraguay in 1998[4] and his second and final appearance as a starter in a 2–1 win against Faroe Islands.