Mario Rafael Díaz-Balart Caballero (born September 25, 1961) is an American politician. He is a Republican. Since 2003, he has served as a member of the U.S. House of Representatives. He currently represents . He has also served in the Florida House of Representatives (1988–1992, 2000–2002) and the Florida Senate (1992–2000). He was born in Fort Lauderdale, Florida.