Christopher Philip Ferguson is an American professional poker player. He has won six World Series of Poker events, including the 2000 WSOP Main Event, and the 2008 NBC National Heads-Up Poker Championship. Ferguson is a computer scientist by training and education.

The World Series of Poker Circuit is a series of poker tournaments held annually at a variety of casinos since 2005 as a build-up to the World Series of Poker (WSOP).