Marc Janko (born 25 June 1983) is a former Austrian footballer who played as a striker for the Austria national team.
Janko was a successful goal-scorer, particularly during his time at Austrian Bundesliga club Red Bull Salzburg, where he scored 75 league goals in 108 matches, including 39 goals in 35 matches in the 2009–10 season.
He is the son of Eva Janko, who won a bronze medal in the women's Javelin event at the 1968 Summer Olympics in Mexico City.