David Petersen is a politician from Arizona. Petersen served as state treasurer from 2003 to 2006 and in the Arizona State Senate from January 1995 through January 2003. He was first elected to the Senate in November 1994, representing District 29, and was re-elected in 1996, 1998, and 2000. Term limited in 2002, he did not run for re-election and instead was elected state treasurer. Petersen's son, Paul Petersen, served as the current Maricopa County Assessor.