{{distinguish|McGahan|Gahn|Ghan (disambiguation){{!}}Ghan|Gan (disambiguation){{!}}Gan}} {{Use dmy dates|date=April 2022}} {{more citations needed|date=March 2012}} {{Infobox surname | name = Gahan | image = | image_size = | caption = | pronunciation = | meaning = Descendant of ''Gaoithín'' | region = Ireland | language = Irish | variant = Ó Gaoithín, Gaoithin, Wynne, Wyndham Guiheen, Guihan | family = | footnotes = }} '''Gahan''' is a surname of Irish origin. It derives from the Irish language name Ó Gaoithín, meaning "descendant of Gaoithín". The Ó Gaoithín were historically chiefs of Síol Éalaigh and today are most prevelent in south-eastern Ireland, particularly in the counties of Wexford and Carlow. Connacht Ó Gaoithíns were typically anglicised as ''Wynne'' or ''Wyndham'' and are of an unrelated origin to the Leinster Ó Gaoithíns.<ref>{{Cite web|url=https://www.libraryireland.com/names/og/o-gaoithin.php|title=Ó Gaoithín|website=Library Ireland}}</ref><ref>{{Cite web|url=https://www.barrygriffin.com/surname-maps/irish/GAHAN/|title=GAHAN Surname Maps of Ireland|access-date=4 June 2025|website=Barry Griffin|publisher=Barry Griffin}}</ref>
People with this surname include: *Arthur Burton Gahan (1880–1960), American entomologist. *Charles Joseph Gahan (1862–1939), Irish entomologist. *Dave Gahan (born 1962) (not his birth name), British singer. *George Thomas Gahan (1912–1980), Australian politician and boxer. *Gordon Gahan (1945–1984), American photographer. *Graeme Gahan (1942–2018), Australian rules footballer. *John Harvey Gahan (1888–1958), Canadian violinist. *Matthew Gahan (born 1975), Australian baseball player. *Thomas Gahan (1847–1905), American politician. *Tracy Gahan (born 1980), Australian basketball player. *William Gahan (1732–1804), Irish priest. *Gahan Wilson (1930–2019), American horror–fantasy cartoonist and illustrator
== See also ==
==References== {{reflist}}
{{given name|type=both}}
Category:Anglicised Irish-language surnames