Joseph A. McArdle (June 29, 1903 – December 27, 1967) was a Democratic member of the U.S. House of Representatives from Pennsylvania.
In 1905, he moved to Pittsburgh, Pennsylvania, with his parents, when his father, Peter J. McArdle was elected president of the Amalgamated Association of Iron and Steel Workers.
Joseph McArdle served in the Pennsylvania State House of Representatives from 1936–1938, when he was elected as a Democrat to the Seventy-sixth and Seventy-seventh Congresses and served until his resignation on January 5, 1942, to become a member of the Pittsburgh City Council.
Also in 1949, he switched parties to turn Republican, and became the State GOP committeeman from Mount Washington, Pennsylvania, from early 1950 until 1966.
McArdle died at the age of sixty-four on December 27, 1967, and was interred at the Roman Catholic Calvary Cemetery, Pittsburgh, Pennsylvania.