Summerside may refer to:

Culture Summer Side of Life, studio album

Geographic locations

Canada Summerside, Edmonton, a neighbourhood in Edmonton, Alberta Irishtown-Summerside, a town in Newfoundland and Labrador Summerside, Prince Edward Island, a city in Prince Edward Island

United States Summerside, Ohio, census-designated place in Ohio

Military CFB Summerside, former Canadian air force base (I), a Royal Canadian Navy vessel that served during the Battle of the Atlantic (II), a Canadian Forces vessel commissioned in 1999

Sport Summerside Storm Summerside Western Capitals

Transport Summerside Airport, airport in Summerside, Prince Edward Island

See also Springside (disambiguation)