自2010年起，他開始與女演員[[露絲·奈嘉]]交往並同居住[[ 倫敦]]<ref>{{cite web|url=http://www.independent.ie/entertainment/how-oscartipped-ruth-neggas-star-has-finally-ascended-34730596.html|title=How Oscar-tipped Ruth Negga's star has finally ascended...|date=23 May 2016|last=Notaro|first=Vicki|accessdate=23 May 2016|work=[[Irish Independent]]}}</ref><ref>{{cite web|url=http://www.independent.ie/style/celebrity/celebrity-news/irish-actress-ruth-negga-and-dominic-cooper-make-rare-public-appearance-at-warcraft-premiere-34783050.html|title=Irish actress Ruth Negga and Dominic Cooper make rare public appearance at Warcraft premiere|date=8 June 2016|last=McBride|first=Caitlin|accessdate=9 June 2016|work=[[Irish Independent]]}}</ref>。