Dan Slater (born c. 1972) was the first vice chair of the Colorado Democratic Party. An attorney in Cañon City, Colorado, Slater ran unsuccessfully for the Colorado State Senate in 2002 before joining the top leadership of the Colorado Democratic Party in 2003. A delegate to both the 2000 and 2004 Democratic National Conventions, Slater was a superdelegate to the 2008 convention, and publicly endorsed Barack Obama.