Hennepin may refer to:
People:
- Father Louis Hennepin (1626–1705), Belgian/French explorer of North America
In places in the US:
- Hennepin, Illinois, a village
- Hennepin, Oklahoma, a small community
- Hennepin County, Minnesota
- Hennepin Avenue, a street in Minneapolis, Minnesota
Other:
- Hennepin (shipwreck), a shipwreck off the coast of Lake Michigan near South Haven, Michigan
- The Hennepin Canal, in Illinois
- Hennepin Farmhouse Saison, a craft beer produced by Brewery Ommegang