Erin is a personal name taken from the Hiberno-English word for Ireland, originating from the Irish word "Éirinn". "Éirinn" is the dative case of the Irish word for Ireland, "Éire", genitive "Éireann", the dative being used in prepositional phrases such as "go hÉirinn" "to Ireland", "in Éirinn" "in Ireland", "ó Éirinn" "from Ireland".
The dative has replaced the nominative in a few regional Irish dialects (particularly Galway-Connemara and Waterford). Poets and nineteenth-century Irish nationalists used Erin in English as a romantic name for Ireland. Often, "Erin's Isle" was used. In this context, along with Hibernia, Erin is the name given to the female personification of Ireland, but the name was rarely used as a given name, probably because no saints, queens, or literary figures were ever called Erin.
According to Irish mythology and folklore, the name was originally given to the island by the Milesians after the goddess Ériu.
The phrase Erin go bragh ("Éire go brách" in standard orthography, dative "in Éirinn go brách" "in Ireland forever"), a slogan associated with the United Irishmen Rebellion of 1798, is often translated as "Ireland forever". The songs 'Let Erin Remember' and 'Érin grá mo chroí' are more examples of the word's usage in Irish romantic nationalism.
Usage as a given or family name
As a given name, Erin is used for both sexes, although, given its origins, it is principally used as a feminine forename. It first became a popular given name in the United States. Its US popularity for males peaked in 1974 with 321 boys registered with the name. Erin is also a name for Ireland in Welsh, and is one of the 20 most popular girls' names in Wales.
As a family name, Erin has been used as one of the many spellings of the name of the Scottish clan "Irwin"—which was involved in the Scottish Plantations of Ireland. However, that name was originally derived from the place of the same name near Dumfries, and means "green water", from Brittonic ir afon.
People
Women
Erin Andrews (born 1978), American sports reporter
Erin Anttila (born 1977), Irish-Finnish singer, better known by her mononym Erin
Erin Babcock (1981–2020), Canadian politician
Erin Bell (born 1987), Australian former netball player
Erin Bethea (born 1982), American actress
Erin Boag (born 1975), New Zealand ballroom dancer
Erin Brockovich (born 1960), American legal clerk and environmental activist and subject of the movie of the same name
Erin Burnett (born 1976), American news anchor and reporter
Erin Byrnes, American politician
Erin Calipari (born 1987), American pharmacologist
Erin Davis (born 1962), Canadian Broadcaster and author
Grey DeLisle (born 1973), American voice actress and recording artist, real name Erin Grey van Oosbree
Erin Fitzgerald (born 1972) Canadian-American voice actress
Erin Gallagher (born 1998), South African swimmer
Erin Gray (born 1950), American actress
Erin Gruwell (born 1969), American teacher
Erin Heatherton (born 1989), American fashion model
Erin Hunter, pseudonym used by the authors of the Warriors and Seekers series
Erin Kelly (born 1981), American actress
Erin McKean (born 1971), American lexicographer
Erin Moran (1960–2017), American actress
Erin Morgenstern (born 1978), American writer
Erin Moriarty (born 1994), American actress
Erin O'Connor (born 1978), British model
Erin Phillips (born 1985), Australian former basketball player and Australian rules footballer
Erin Pizzey (born 1939), author and founder of the first domestic violence shelter in the modern world
Erin Regan (born 1980), retired American soccer player
Erin Richards (born 1986), Welsh actress
Erin Sanders (born 1991), American actress
Erinn Smart (born 1980), American fencer
Erin Spanevello (1987–2008), Canadian fashion model
Erin Wall (1975–2020), Canadian operatic soprano
Men
Erin Clark (born 1997), Samoa league footballer
Erin Cossey (born 1971), New Zealand Maori rugby union player
Erin Henderson (born 1986), American football linebacker
Erin O'Toole (born 1973), Canadian politician
Erin Pinheiro (born 1997), Cape Verdean footballer
Erin Weir, Canadian Member of Parliament for the riding of Regina—Lewvan
Fictional characters
Dr Erin Mears, a character in the 2011 film, Contagion, played by Kate Winslet
Erin, a character in 1986 American fantasy drama film The Boy Who Could Fly
Erin, a character in The Simpsons episode "Summer of 4 Ft. 2", voiced by Christina Ricci
Erin, protagonist of Nahoko Uehashi's light novel, manga, and anime series 獣の奏者エリン (Kemono no Sōja Erin)
Erin Brill, a character from the TV series Better Call Saul
Erin Driscoll, a character in U.S. thriller 24
Erin Esurance, formerly the Esurance mascot
Erin Hannon, a character in U.S. sitcom The Office
Erin Hasko, a character in the Marvel Comics series Web Warriors and video game Spider-Man Unlimited
Erin Noble, a character in British television series Young Dracula
Erin Quinn, protagonist of Northern Irish sitcom Derry Girls
Erin Silver, a character in American television franchise Beverly Hills, 90210
Erin Strauss, the former BAU Section Chief from the U.S. drama series Criminal Minds