Jón Magnússon (disambiguation)
Jón Magnússon is the name of the following people:
- Jón Magnússon (1859-1926), Icelandic politician
- Jón Magnússon (theologian) (around 1610–1696), Icelandic theologian and author
- Jón Magnússon (handball player) (born 1948), Icelandic handball player
- Jón Arnar Magnússon (* 1969), Icelandic decathlete
