Marcin Marciniszyn

Marcin Marciniszyn (born 7 September 1982, in Bystrzyca Kłodzka) is a Polish sprinter who specializes in the 400 metres.

Personal bests
Outdoor
 * 100 metres – 10.76 s (2012)
 * 200 metres – 21.07 s (2011)
 * 400 metres – 45.27 s (2011)

Indoor
 * 400 metres – 46.64 (2006)