Surname Þórólfur (Þórólfur , Thorolfur ) , globally, is an extremely rare family name. Much more frequently, Þórólfur is the forename as well as the last name.
Thoralf, Thorolf, Thorulf, Toralf, Torolf, Torolv, and Торальф
Jónsson, Þórsson, Einarsson, Óskarsson, Ólafsson, Þórólfsson, and Kristjánsson
, Thorolfur 
) , globally, is an extremely rare family name. Much more frequently, Þórólfur is the forename as well as the last name.