Family name Thorgrimur (Þorgrímur , Thorgrimur ) , around the globe, is an extremely rare surname. Much more prevalently, Thorgrimur is the forename as well as the last name.
Thorgrim, and Torgrim
Eiriksson, Sveinsson, Emilsson, Einarsson, Sigfusson, and Halfdanarson
, Thorgrimur