Daniel "Dan" Robert Greenbaum (born March 12, 1969) is an American former volleyball player who competed in the 1992 Summer Olympics in Barcelona and won a bronze medal.

[2] Greenbaum was born in Torrance, California.

[3][4] He played college volleyball at the University of Southern California, where he was twice an All-American and helped the Trojans win NCAA Championships in 1988 and 1990.

[1][5] In 1990, he was selected to the All-Tournament Team.

[6] Greenbaum played professionally in Japan for Team NEC in 1995–1996.