Greenblatt (Yiddish: "green leaf") is a surname and may refer to:
- C. H. Greenblatt (born 1972), writer and storyboard artist, most notably for SpongeBob SquarePants
- Jack Greenblatt, Canadian scientist
- James Marshall, actor, born James David Greenblatt
- Joel Greenblatt, American financier
- Jonathan Greenblatt, co-founder, Ethos Water
- Richard Greenblatt (disambiguation)
- Richard Greenblatt, computer programmer and hacker
- Richard Greenblatt, Canadian playwright
- Shon Greenblatt, American actor
- Stephen Greenblatt, New Historicist literary critic and theorist
Read more about Greenblatt: Greenblat, Akiva Grunblatt