Raymond Stephen McKeough (April 29, 1888 – December 16, 1979) was an American Democratic politician who served as a U.S. Representative from Illinois from 1935 to 1943.

He graduated from the De La Salle Institute in 1905 and went to work in the Union Stock Yards.

His opponent in the Democratic primary was Paul Douglas, an economist and professor at the University of Chicago who had long been associated with "reform" politics.

Douglas carried 99 of Illinois' 102 counties, but McKeough's Chicago-area majority was sufficient to overcome this and win the nomination.

On December 3, 1956, McKeough embarked on what became his last stint in public service, as an assistant state's attorney.