Alan Wayne Allard is an American veterinarian and politician who served as a United States representative (1991–1997) and United States senator (1997–2009) from Colorado, as well as previously a Colorado state senator (1983–1991). A member of the Republican Party, he did not seek re-election to the U.S. Senate in 2008. In February 2009, he began work as a lobbyist at the Livingston Group, a Washington, D.C.–based government relations consulting firm.