Duell may refer to:
People
- Charles H. Duell, former commissioner of the United States Patent and Trademark Office.
- R. Holland Duell, United States Representative from New York for the years 1859-1863 and 1871-1875.
Companies
- Duell, Sloan and Pearce, a former publishing company located in New York.
Other
- Duell (chess), a chess variant.
