Luke Esser (born August 26, 1961) is an American attorney, journalist, and politician who served as the chairman of the Washington State Republican Party from 2007 to 2011. He was elected on January 27, 2007, when he defeated incumbent chairwoman Diane Tebelius, was re-elected in 2009, but lost to Kirby Wilbur in 2011. For much of the 1990s, Esser was a contributing writer to Fantasy Football Index, the nation's oldest and largest circulating fantasy football publication.