Jón Árnason

Jón Árnason may refer to:


 * Jón Árnason (bishop of Garðar) (died 1209)
 * Jón Árnason (author) (1819–1888), Icelandic author
 * Jón Loftur Árnason (born 1960), Icelandic chess player
 * Jón Gunnar Árnason (1931–1989), Icelandic sculptor