Megan Cornish is an American socialist feminist and labor activist with the Freedom Socialist Party (FSP) and Radical Women, as well as a retired electrician with Seattle City Light. Cornish became an electrician after participating in an affirmative action program in 1974. Much of her activism work has focused on fighting workplace discrimination at Seattle City Light.

Seattle City Light is the public utility providing electricity to Seattle, Washington, in the United States, and parts of its metropolitan area, including all of Shoreline, nearly all of Lake Forest Park, and parts of unincorporated King County, Burien, Normandy Park, SeaTac, Renton, and Tukwila. Seattle City Light is the 10th largest public utility in the United States and the first municipal utility in the US to own and operate a hydroelectric facility. In 2005, it became the first electric utility in the United States to fully offset all its carbon emissions and has remained carbon neutral every year since.