The Working Families Party (WFP) is a left-wing minor political party in the United States, founded in New York in 1998. There are active chapters in California, Colorado, Connecticut, Delaware, the District of Columbia, Georgia, Illinois, Maryland, Nevada, New Jersey, New Mexico, New York, Ohio, Oregon, Pennsylvania, Rhode Island, Texas, West Virginia, and Wisconsin.

The Working Families Party of New York was first organized in 1998 by a coalition of labor unions, community organizations, members of the now-inactive national New Party, and a variety of advocacy groups such as Citizen Action of New York and ACORN: the Association of Community Organizations for Reform Now. The party is primarily concerned with healthcare reform, raising the minimum wage, universal paid sick days, addressing student debt, progressive taxation, public education, and energy and environmental reform. It has usually cross-endorsed progressive Democratic and some Republican candidates through fusion voting but occasionally runs its own candidates.