Mary Wittenberg (née Robertson; born July 17, 1962) is an American sports executive who formerly served as president of professional women's soccer club NJ/NY Gotham FC.

Wittenberg oversaw the TCS New York City Marathon and several other races, events, and programs that draw over 300,000 yearly participants.

[1] Under Wittenberg's leadership, NYRR helped develop new initiatives such as the World Marathon Majors Series and several community programs that have introduced running to underprivileged children.

Wittenberg also trained with the men's cross country team while attending law school at University of Notre Dame.

[5] She would spend busy days working in the office, marathon training with the University of Richmond cross country team, and studying to pass the bar.

[4][5] Despite taking a significant pay cut,[4] Wittenberg began work for New York Road Runners as Vice President and Chief Operating Officer.

Under Wittenberg's leadership, a significant change was made for women marathoners to receive more prize money than their male counterparts.

[16][17] The New York Daily News wrote in an article, "Wittenberg is emphatic in her conviction that her job isn't just to put on top pro races, but to cultivate healthy living and be a force for good in the community.

[18] After both the Men's and Women's 2012 Olympic Trials were awarded to Houston, Wittenberg expressed surprise and frustration with the USATF's process of picking a host city.

Deena Kastor, an American record holder and Olympic Bronze medalist in the Marathon, said of Wittenberg: "In a very short amount of time, she has made so many positive changes in this sport".

[2] Shalane Flanagan, also an American record holder and an Olympic Bronze Medalist in the 10,000 m, commented "What Phil Knight is to Nike, Mary is to distance running.

"[20] Olympic Sportswriter Philip Hersh was so impressed with Wittenberg's work with NYRR, he suggested that she be named CEO of USA Track and Field.

[22] However in January 2018 she and the rest of her New York-based team left the company after it decided to focus its efforts exclusively on the UK in 2018, after the planned inaugural American Virgin Sport event due to be held in San Francisco in October 2017 was cancelled due to the proximity of the Northern California wildfires which had started early that month.