Magnús Einarsson (1092 - September 30, 1148; Old Norse: in Norse, Old pronounced as /ˈmɑɣnuːs ˈɛinˌɑrsˌson/; Modern Icelandic: in Icelandic pronounced as /ˈmaknuːs ˈeiːnˌar̥sˌsɔːn/) was an Icelandic Catholic clergyman who became the fourth bishop of Skálholt from 1134 to 1148. He served the diocese of Skálholt.[1] According to Hungrvaka, he intended to build a monastery on Vestmannaeyjar, but died before he could.[2]