Iorn may refer to:
- Iørn Piø (1927–1998), Danish historian
- Iørn Uldbjerg (born 1968), retired Danish football player
See also
edit- Elizabeth Iorns (born 1980), New Zealand scientist
- Erin (female given name), for which "Iorn" is a rare variant
- Iron (disambiguation)
- Iron, a metallic chemical element
- Jorn, people with the name
- Yorn, people with the name