Grennan is an Irish surname. It may be of Norman origin, from the French name Grenan. Notable people with the surname include:
- Eamon Grennan (born 1941), Irish poet
- Justin Grennan (born 1978), American singer
- Keith Grennan (born 1984), American football player
- Mike Grennan (1950–2009), American curler
- Tom Grennan (born 1995), English singer and songwriter
- Winston Grennan (1944–2000), Jamaican drummer
- Jacqueline Grennan Wexler (1926–2012), American academic administrator
See also edit
- Greenan (surname)
- Julia Grenan (1884–1972), Irish nationalist and socialist in the Easter Rising
- Grennan (disambiguation)
This page lists people with the surname Grennan.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.
If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link.