Stephanie DeFina Johnson (born March 8, 1946) is an American former amateur tennis player who was active in the 1960s and early 1970s.
|Full name||Stephanie Roberta DeFina|
|Country (sports)||United States|
|Born||March 8, 1946|
Brooklyn, New York, United States
|Height||5 ft 2 1⁄4 in (1.58 m)|
|Grand Slam Singles results|
|French Open||2R (1967)|
|US Open||3R (1962, 1966, 1967)|
|Grand Slam Doubles results|
|French Open||3R (1967)|
|US Open||QF (1965, 1966, 1967, 1970)|
|Grand Slam Mixed Doubles results|
|US Open||QF (1968)|
In 1966, she reached the final of the U.S. Women's Clay Court Championships before falling to Nancy Richey. In 1969, she was a doubles runner-up at the New England Women's Invitational Indoor Tennis Championships (teaming with Kathy Pigeon) and was the singles runner-up at the U.S. Indoor Championships.
At the tournament in Cincinnati, DeFina won two singles titles: in 1963 (defeating Jane "Peaches" Bartkowicz in the final) and 1965 (defeating Roberta Alison in the final). She also paired with Alison to win the Cincinnati doubles title in 1965.
In 1968 DeFina was a member of the U.S. team that competed for the Wightman Cup, the annual women's team tennis competition between the United States and Great Britain. She played the doubles match partnering Kathy Harter but lost to the sister team of Christine Truman Janes and Nell Truman.
- United States Tennis Association (1988). 1988 Official USTA Tennis Yearbook. Lynn, Massachusetts: H.O. Zimman, Inc. p. 261.
- "USTA Yearbook - Top 10 U.S. Women's Rankings". USTA.
- "Wimbledon players archive – Stephanie Johnson (De Fina)". www.wimbledon.com. AELTC.
- Bob Bloodworth (January 10, 1970). "Stephanie DeFina Likes New Name". The Palm Beach Post. p. D2.
- "Mylan WTT Player Database (seasons completed) - as of September 25, 2014 - (Seasons 1974-2014)" (PDF). World TeamTennis. September 25, 2014. Archived from the original (PDF) on February 27, 2015. Retrieved April 21, 2015.