Mark Janoschak (born December 2, 1968, in Bramalea, a community in Chinguacousy Township) is a Canadian ice dancer.

A few months after he and Jacqueline Petr teamed up,[citation needed] they placed 7th at the 1987 World Junior Championships.

In 1992, Petr and Janoschak won their national title and were selected for the 1992 Winter Olympics.

During a practice session on February 10, Petr's right skate hit her left calf, requiring 22 stitches.

Janoschak also skated competitively with Sandra Ross under the direction of Roy Bradshaw.