Gregory J. "Greg" Nickels (born August 7, 1955) was the 51st mayor of Seattle, Washington. He took office on January 1, 2002 and was reelected to a second term in 2005. In August 2009, Nickels finished third in the primary election for Seattle mayor, failing to qualify for the November 2009 general election, and losing his bid for a third term as mayor. He left office on January 1, 2010.