Jan Marek (December 31, 1979 – September 7, 2011) was a Czech professional ice hockey centre.

He was selected by the New York Rangers in the 8th round (243rd overall) of the 2003 NHL Entry Draft.

[citation needed] Marek signed with Lokomotiv Yaroslavl for the 2011-12 KHL season but was killed before playing a game for the team.

On September 7, 2011, Marek died when a Yakovlev Yak-42 passenger aircraft, carrying nearly the entire Lokomotiv team, crashed just outside Yaroslavl, Russia.

Lokomotiv officials said "everyone from the main roster was on the plane plus four players from the youth team.