"Jeff" may refer to the following:
- Jeff - a partner of Carlos in the SkyWalker continuity.
- Jeff - a member of the BSAA Alpha Team that was decimated by the Iluzija.
- Jeff Hendricks - a journalist.
- Jeffery - an associate with one of Umbrella's Tyrant development programs.
- Real world "Jeffs"
- Jeff Danna - composer for Resident Evil: Apocalypse.
- Jeff Farquharson - voice actor for Resident Evil Outbreak.
- Jeff Teravainen - voice actor for Resident Evil Outbreak.