The Oscar-winning actress wed photographer Alexandra Hedison over the weekend after dating for almost a year.
E! Online first reported the news of the couple's nuptials.
In 2013, Foster, 51, gave a stirring speech at the Golden Globes that many interpreted as her coming out.
"This is not going to be a big coming-out speech tonight because I already did my coming out about a thousand years ago back in the Stone Age – in those very quaint days when a fragile girl would open up to trusted friends and family and coworkers and then gradually proudly to everyone who knew her," she said during the awards, before thanking her ex-partner Cydney Bernard, the mother of her two sons.
Reporting by JULIE JORDAN