Daniel David "Dan" Dickau (born September 16, 1978) is a retired American professional basketball player who currently works as a player development assistant with the Portland Trail Blazers.

Born in Portland, Oregon, Dickau graduated from Prairie High School in Brush Prairie, Washington. He played for the University of Washington Huskies prior to transferring to, and becoming a standout point guard for Gonzaga. He was named a first team All-American his senior year.

Dickau was drafted in the first round (28th overall) by the Sacramento Kings in the 2002 NBA Draft. He has been traded eight times and worn various jersey numbers in his six-year NBA career:

For two years in a row, Dickau was traded in a draft-day trade package, first from the Celtics to the Trail Blazers, then from the Trail Blazers to the Knicks.

On December 17, 2005, as a member of the Celtics, his season was ended by a ruptured Achilles tendon sustained while playing against the Chicago Bulls. At the time, he was averaging 3.3 points per game and 2.1 assists per game. On June 28, 2006, the Celtics traded Dickau, center Raef LaFrentz and the 7th pick in the 2006 NBA Draft to the Trail Blazers for center Theo Ratliff and guard Sebastian Telfair. Dickau was then sent to the Knicks along with Randolph, only to be waived when the Knicks acquired Jared Jordan. Two days later, Dickau signed with the Clippers.