Robert Emmet Hagan (March 22, 1921 – January 17, 1999) was an American politician of the Democratic Party.
In 1970, Hagan ran unsuccessfully for the Democratic nomination for Lieutenant Governor of Ohio.
In 1972, Hagan was on the traveling staff of Democratic nominee for Vice President Sargent Shriver as his joke writer.
Throughout his career Hagan was known for a forceful speaking style that often included a fair share of humor.
After leaving elected office, Hagan began performing stand-up comedy, having fun with politics and the unusually large size of his family (he and his wife, Ada DiLoreto Hagan, had 14 children), among other topics.