Warner dated Colin Farrell from late 2000 to November 2001. There was speculation that they married; however, in December 2011 Warner told The Sun that the marriage was never legal: "We had a ceremony on a beach in Tahiti that was by no means legal and we knew it wasn't...It was just a thing we did on holiday." 　　In 2009 she met the Northern Irish actor and model Jamie Dornan. They were engaged in 2012 and married at Orchardleigh House in Somerset on 27 April 2013. In June 2013, the couple confirmed they were expecting their first child,and Warner gave birth to a girl, Dulcie, in November 2013. In March 2016 it was confirmed that Warner and husband Jamie Dornan had a second daughter, in February 2016.