Fortean refers to:
- Charles Fort's ideas and philosophy and the people and things inspired by it
- Fortean Society, formed by New York's literati led by Theodore Dreiser, Booth Tarkington, Ben Hecht
- International Fortean Organization, an organization dedicated to the spirit, humor and philosophy of Charles Fort
- Fortean Times, a magazine featuring the spirit, humor and philosophy of Charles Fort
- Centre for Fortean Zoology, a cryptozoological group
- Fortean TV, a TV show
- Fortean Bureau, an online magazine