Mara was in a relationship with Max Minghella between 2010 and 2014.[54] In 2014, Mara briefly dated her My Days of Mercy co-star Elliot Page[55][56] before beginning a relationship with her Fantastic Four co-star Jamie Bell in 2015.[57] In January 2017, the couple were engaged.[58] On July 17, 2017, the couple announced that they had married.[59] As a result, Mara became the stepmother to Bell's son from his marriage to Evan Rachel Wood. In May 2019, the couple's daughter was born.[60] On November 17, 2022, Mara announced on Instagram that she had given birth to a son the week before. Mara lives in Los Angeles[61] and Manhattan.[62][63]