Halleck may refer to:
- Halleck, West Virginia, an unincorporated town in the United States
- Fitz-Greene Halleck (1790–1867), U.S. poet.
- Henry Wager Halleck (1815–1872), U.S. soldier, scholar, and lawyer.
- Charles A. Halleck (1900–1986), U.S. politician.
- Gurney Halleck, a character in the Dune novels of Frank Herbert.
- Halleck, Nevada, an unincorporated community in Elko County, Nevada, USA