The character Arnas Arnæus in Nobel prize-winner Halldór Kiljan Laxness's novel Iceland's Bell (Íslandsklukkan) is based on him; the novel concerns the manslaughter case against Jón Hreggviðsson, a farmer whose conviction was eventually reversed in part due to Árni and Vídalín's investigations.
Guðmundur Árni Stefánsson | Per Magnusson | Arni | Mats Magnusson | Greta Magnusson-Grossman | Godred Magnusson | University College of Engineering Arni | Tony Magnusson | Patrik Magnusson | Magnús Ver Magnússon | Magnus Magnusson | Haakon Magnusson of Norway | Eiríkr Magnússon | Bengt Magnusson (Bjälboäten) | Ástþór Magnússon | Arni (Vidhan Sabha constituency) | Arni (Tamil Nadu) | Arni (ST) | Árni Magnússon |
He was a member of the Arnamagnæan Commission (Den Arnamagnæanske Kommission) which managed the Arnamagnæan Foundation ( Det Arnamagnæanske Legat), custodians for the collection of manuscripts from Icelandic scholar Árni Magnússon.