Huỳnh Phương Đài Trang (born 1 August 1993) is ỳnhPhươngĐàa Vietnamese former tennis player.
Trang has career-high WTA rankings of 876 in singles, reached in April 2010, and 380 in doubles, achieved on 23 July 2012. In her career, she won three $10k doubles titles on the ITF Women's Circuit and reached another two $25k doubles finals.
Playing for Vietnam Fed Cup team, Trang has a win–loss record of 4–3.
She made her WTA Tour main-draw debut at the 2010 Malaysian Open, where she was given a wildcard into the doubles event with Jawairiah Noordin of Malaysia. The pair lost in the first round to Vitalia Diatchenko and Chanelle Scheepers, 4–6, 2–6.
Trang has participated for Vietnam at the Asian Games and the Southeast Asian Games. At the 2011 Southeast Asian Games she won two bronze medals, in the doubles and the team events.
ITF finals
Doubles: 7 (3–4)