Working Men's Party (Philadelphia)

The Working Men's Party was a political organization established in Philadelphia, Pennsylvania in 1828 to promote candidates and policies of concern to the working class. After January 1829, the organization was also known as the Workingmen's Republican Political Association.

Emerging from the city's pioneer trade union federation, the Mechanics' Union of Trade Associations as its electoral arm, the Working Men's Party fielded candidates in the 1828-1831 elections before abruptly vanishing from the political scene.

The Philadelphia Working Men's Party was the first of approximately 60 independent workers parties to emerge in urban centers of the United States during the period 1828 to 1832. It is regarded as the first labor party to be established in the United States.