Árni Helgason (c. 1260 – 21 January 1320; Modern Icelandic: in Icelandic pronounced as /ˈau(r)tnɪ ˈhɛlkaˌsɔːn/) was an Icelandic Roman Catholic clergyman, who became the eleventh bishop of the Icelandic diocese of Skálholt in 1304. He served until his death in 1320.