The name Jeffrey or Jeff may refer to:
- Jeff - An employee at Wolf Home Security who appears in "Insecurity".
- Jeff Arrando - A Channel 4 News reporter in "The Entity".
- Jeff Bezos - Founder of Amazon.
- Jeff Corrigan - An Immigration and Customs Enforcement officer in "Mexican Joker".
- Jeff Goldblum - American actor and musician in "Cancelled".
- Jeff Gordon - A professional NASCAR driver.
- Jeff White - A USDA worker who appears in "Gluten Free Ebola".
- Jeffrey Dahmer - America serial killer.
- Jeffrey Epstein - American financier.
- Jeffrey Maynard - A drama actor in "Helen Keller! The Musical".