Madison Brengle (born April 3, 1990) is an American professional tennis player on the WTA Tour. Her biggest success occurred in early 2015, reaching her first WTA final in January, followed by a fourth round major appearance at the Australian Open. In May her singles ranking reached a career-best of No. 35 in the world. Her greatest victory so far was in 2017 over world #2 Serena Williams.
In August 2007 she was ranked 4th in the world in juniors. Brengle then toiled for years in the ITF Women's Circuit. Over the course of 24 consecutive majors between 2008 and 2014 she failed to make it out of the pre-tournament qualifier. The streak ended when she earned a wildcard for the 2014 US Open main draw, which she capitalized on for her first major match win. Her ranking soon rose into the world top 100 for the first time.
Brengle was born and raised in Dover, Delaware, and is Jewish. Her mother (Gaby née Gamberg) coaches her, her father is Dan Brengle, and her brother is David.