Joseph Oscar Aubuchon (January 2, 1917 – September 10, 1970) was a Canadian professional ice hockey left winger who played 50 games with the Boston Bruins and New York Rangers over two National Hockey League seasons from 1942 to 1944.

Nine games into the following season he was traded to the Rangers as a war replacement (had received a medical discharge).

He would go on to play with other minor pro teams, as well as the Quebec Senior Hockey League.

[1] Oscar Aubuchon also coached the Drummondville Eagles and they won the Allan Cup in 1967.

After his playing days he coached many years for amateur hockey teams in Quebec.