The Capital Traction Company was the smaller of the two major street railway companies in Washington, D.C., in the early 20th century.
It was formed in 1895 when the Rock Creek Railway acquired the Washington and Georgetown Railroad Company. The company's streetcars connected the Washington, D.C., neighborhoods of Georgetown, Capitol Hill, the Armory, and Mount Pleasant; and the suburb of Chevy Chase, Maryland.
In 1933, it merged with its major competitor, the Washington Railway and Electric Company, and the Washington Rapid Transit Company, a bus operator, to form the Capital Transit Company.