Mariusz Okoniewski (10 February 1956, in Poznań – 10 February 2006, in Śmigiel) was a Polish motorcycle speedway rider.
[1][2] Okoniewski won the Team Speedway Polish Championship six times and Polish Silver Helmet in 1976.
[3][4] His son Rafał (born 1980) is also a speedway rider.
Rafał is the only double Individual U-19 European Champion.
This biographical article relating to Polish speedway is a stub.