The Cornwall Aces were the American Hockey League (AHL) affiliate of the National Hockey League's Quebec Nordiques from 1993 to 1995 and the relocated Colorado Avalanche in 1995–96.

They were based in the eastern Ontario city of Cornwall and played at the Ed Lumley Arena inside the Cornwall Civic Complex.

After one season being affiliated with Colorado, the franchise went dormant for three seasons, while the Avalanche transferred players to their other affiliate, the Hershey Bears.

Coaches were Bob Hartley, who would coach the Colorado Avalanche, the Atlanta Thrashers and the Calgary Flames of the National Hockey League, and Jacques Martin, former head coach of the NHL's Ottawa Senators and Montreal Canadiens.

This Ontario ice hockey team-related article is a stub.