Jón Halldórsson
Jón Halldórsson is the name of the following people:
- Jón Halldórsson (Bishop) (1275–1339), Icelandic Bishop of Skálholt
- Jón Halldórsson (Pastor) (1665–1736), Icelandic pastor and historian
- Jón Halldórsson (track and field athlete) , Icelandic disabled athlete
- Jón Laxdal Halldórsson , known as Jón Laxdal (1933-2005), Icelandic actor and director