William "Bill" Bowrey (born 25 December 1943) is a former Australian male tennis player.
Bowrey was born in Sydney, New South Wales, Australia and is best remembered as the last amateur to win the Australian Championships in 1968 before the tournament opened itself to professional tennis players in 1969.
At the age of 16 Bill was a member of the schoolboys' NSW state PSAAA tennis team.
In the process of qualifying he overcame promising Newcastle junior Ross Flanagan who had match point against Bowrey.
Bowrey held on to win and Ross Flanagan decided to pursue a less spectacular career as a Physics and Sports Biomechanics Lecturer at The University of Newcastle.