Marcel Jean Josse Lafortune (29 September 1900 – ?)
was a Belgian rifle shooter who competed at four Olympic Games (1936, 1948, 1956, 1960).
He came from a shooting family with sixteen Olympic appearances between them.
His other brother Hubert Lafortune was part of the Belgium gymnastics team that won silver at the 1920 Olympic Games.
This biographical article relating to sport shooting in Belgium is a stub.