|Full name||Cynthia MacGregor|
|Country (sports)||United States|
|Born||March 26, 1964|
|Died||February 13, 1996 (aged 31)|
Monterey Park, California
|Highest ranking||No. 177 (March 14, 1988)|
|Grand Slam Singles results|
|Australian Open||2R (1988)|
|Highest ranking||No. 50 (April 11, 1988)|
|Grand Slam Doubles results|
|Australian Open||QF (1990)|
|French Open||1R (1990)|
|US Open||3R (1988)|
Cynthia MacGregor (March 26, 1964 - February 13, 1996) was a professional tennis player from the United States.
MacGregor, who was known as "Cinny", was born in Torrance, California.
She competed on the professional tour mostly as a doubles player, reaching 50 in the world. In doubles she often partnered with younger sister Cammy MacGregor and the pair made four WTA Tour finals together, including a title win in Taipei in 1987. Her most notable performance in singles was a second round appearance at the 1988 Australian Open, where after beating Patricia Hy in the first round, she lost in the second round to eventual quarter-finalist Claudia Porwik, 11-13 in the deciding set. At the 1990 Australian Open, she teamed up with her sister to make the quarter-finalists of the women's doubles.
|Win||April, 1987||Taipei, Taiwan||Category 1||Carpet||Cammy MacGregor|| Sandy Collins
|7-6(10-8), 5-7, 6-4|
|Loss||October, 1987||San Juan, Puerto Rico||Category 1+||Hard||Cammy MacGregor|| Lise Gregory
|Loss||January, 1988||Auckland, New Zealand||Category 1||Hard||Cammy MacGregor|| Patty Fendick
|Loss||April, 1988||Tampa, Florida, USA||Category 3||Clay||Cammy MacGregor|| Terry Phelps