Marek Matiaško (born 29 October 1977) is a former Slovak biathlete.

Matiaško was born in Bojnice, Trenčín, Slovakia on 29 October 1977.

[1] He competed in the 2002, 2006 and 2010 Winter Olympics in a range of biathlon events.

[2][1] Matiaško retired from the sport after the 2009–10 season.

This Slovak biographical article relating to biathlon is a stub.