Harriet(t) might refer to:
- Harriet (name), a female name
- Harriet (singer) (born 1966), English dance pop singer.
- Harriet (band), an alternative americana band from Los Angeles.
- Harriet (tortoise) (1830–2006), Galápagos tortoise
- Harriet (blog), a blog of the Poetry Foundation
- Harriet, Arkansas
- Harriett, Texas
- Harriet (ship), an 1893 fishing smack preserved in Fleetwood Museum