Herkimer may refer to:
People:
- Nicholas Herkimer (c. 1728–1777), militia general in the American Revolutionary War
- Johan Host Herkimer (1732–1795), Empire Loyalist, brother of Nicholas Herkimer
- John Herkimer (1773–1848), American lawyer and politician from New York
Places:
- Fort Herkimer, a fort located on the southern side of the Mohawk River in central New York
- Herkimer County, New York, a county located in the U.S. state of New York
- Herkimer (town), New York, a town in Herkimer County, New York
- Herkimer (village), New York, a village in Herkimer County, New York
- Herkimer Street, a a road in Hamilton, Ontario, Canada
Other:
- Herkimer, a fictional disembodied head from the TV series Special Unit 2
- Herkimer diamond, a generic name for double-terminated quartz crystals first discovered in Herkimer County, New York