Hrafnhildur Lúthersdóttir (Icelandic pronunciation: [ˈr̥apn̥ˌhɪltʏr ˈluːtʰɛr̥sˌtouʰtɪr̥]; born 2 August 1991 in Hafnarfjörður is an Icelandic former swimmer. Born in Iceland, Lúthersdóttir moved to the United States to study public relations and swam for the University of Florida.