Trevor Lynn Powis (born July 7, 1949) is a Canadian former professional ice hockey player.

Powis played on season for the Canadiens' American Hockey League affiliate Nova Scotia Voyageurs before being traded to the Atlanta Flames.

Powis played one season with the Flames' Omaha Knights affiliate, then was traded to the Chicago Black Hawks.

In 1978, Powis moved to Germany and played four seasons in the Eishockey-Bundesliga for Duisburger SC and EV Füssen.

In total, Powis played 130 games in the National Hockey League, scoring 19 goals and 33 assists.