The celebrity couple have broken up, a publicist for Moynahan confirmed Friday.
A statement said Brady and Moynahan "amicably ended their three-year relationship several weeks ago. We ask for your respect and consideration of their privacy. No further comments will be made."
Brady, 29, a two-time Super Bowl MVP who has led the Patriots to three NFL titles, was named one of People magazine's "50 Most Beautiful People" in 2002.
Moynahan, 35, has appeared in films such as "Coyote Ugly" and the ABC television series "Six Degrees."