Árni is an Icelandic given name. Notable people with the name include:
Árni Gautur Arason (born 1975), Icelandic football goalkeeperÁrni Már Árnason (born 1987), Icelandic Olympic swimmerÁrni Páll Árnason (born 1966), Icelandic politician, Minister for Social AffairsÁrni beiskur (died 1253), Icelandic killerÁrni Bergmann (born 1935), Icelandic novelistÁrni Frederiksberg (born 1992), Faroese football midfielderÁrni Helgason (c. 1260–1320), Icelandic Roman Catholic clergymanÁrni Johnsen (born 1944), Icelandic politician and criminalÁrni Lárentíusson (1304–after 1337), Icelandic prose writerÁrni Magnússon (1663–1730) was an Icelandic scholar and collector of manuscriptsÁrni Magnússon (politician) (born 1965), Icelandic politician, Minister for Social AffairsÁrni Mathiesen (born 1958), Icelandic Minister of FinanceÁrni Njálsson (born 1936), Icelandic football defenderÁrni Sigfússon (born 1956), Icelandic policitican; former mayor of ReykjavíkÁrni Þór Sigurðsson (born 1960), Icelandic ambassadorÁrni Stefánsson (born 1953), Icelandic football goalkeeperÁrni Sveinsson (born 1956), Icelandic football midfielderArni Thorvaldsson (born 1984), Icelandic alpine skierÁrni Vilhjálmsson (born 1994), Icelandic football strikerÁrni Þórarinsson (born 1950), Icelandic writerÁrni Þorláksson (1237–1298), Icelandic Roman Catholic clergyman