Frank Forrest Buck (September 26, 1943 – January 24, 2024) was an American politician who was a member of the Tennessee House of Representatives from 1973 to 2009.
His father, John, started out as a sharecropper and eventually owned over 500 acres (2.0 km2) of land in Wilson, Smith, and Trousdale counties.
In 1990, Frank Buck narrowly lost to Bill Purcell in a bid for the position of House majority leader.
In 1993 and 1994, Buck introduced legislation that would have restrained lobbyists from giving gifts and paying travel expenses of members of the General Assembly, and forced more disclosure of such acts.
He has received numerous awards from groups for his work on ethics reform including one from Common Cause for the Cup of Coffee bill.