Kenneth Robert Buck (February 16, 1959 –) is an American lawyer and politician who has represented Colorado's 4th congressional district in the United States House of Representatives since 2015. From March 30, 2019, to March 27, 2021, Buck served as chair of the Colorado Republican Party, having replaced Jeff Hays.
- If extreme means that I am unwilling to go to Washington, D.C., and do what President Obama tells me, then so be it. But I am certainly not going to Washington, D.C. to represent the interests of D.C. I'm going there to represent Colorado values.
- Interview with Colorado Senate Candidate Ken Buck (11 August 2010)
- Any time you have a president that you can distinguish your positions from, it is beneficial.