William Brown (born January 14, 1945) is a retired professional tennis player from the United States.

[1] The right-hander was active during the 1970s and 1980s, and won four doubles titles on the tour: the 1973 Omaha Open, 1975 American Airlines Tennis Games (Tucson), 1975 at Shreveport and the 1976 Columbus Open.

[2][3] During his senior year of high school, Brown not only won every match on his way to winning the state high school championships, he did not drop a single set.

[5] He competed against some of the greatest players at the time, including Arthur Ashe, Björn Borg, Jimmy Connors, Ilie Nastase, John Newcombe, and Stan Smith.

[7] He played senior tennis tournaments with Ken Stuart as his partner.