Jeffrey "Jeff" Flake (born December 31, 1962), an American politician, has been a Republican member of the United States House of Representatives since 2001, representing Arizona's 6th congressional district.

He was born in Snowflake, Arizona (named in part for his great-great-grandfather, William J. Flake), was educated at Brigham Young University and was a missionary for the Church of Jesus Christ of Latter-day Saints to South Africa in the early 1980's. He worked in the public affairs sector after college and served as Executive Director of the Foundation for Democracy in Namibia and Executive Director of the Goldwater Institute before entering the House.

Flake is a critic of government waste and advocates reducing federal spending.