Irish Surnames
The most common British surnames that originally came from Ireland
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- Gaffney
- Gallacher
- Gallagher
- Galvin
- Gannon
- Gargan
- Garry
- Garvey
- Gaughan
- Gault
- Gavin
- Geoghegan
- Geraghty
- Gibney
- Gilchrist
- Gildea
- Gilfillan
- Gillen
- Gillespie
- Gilligan
- Gilmartin
- Gilmour
- Gilroy
- Given
- Glancy
- Gleeson
- Glenn
- Glennon
- Glynn
- Gormley
- Gough
- Gracey
- Grady
- Grattan
- Greenan
- Gribben
- Gribbin
- Grogan
- Guerin
- Guilfoyle
- Hagan
- Halligan
- Halloran
- Hamill
- Hanlon
- Hanna
- Hannigan
- Hannon
- Hanrahan
- Haran
- Harkin
- Harrigan
- Harte
- Hartigan
- Hartnett
- Harty
- Haughey
- Healy
- Heaney
- Heenan
- Heffernan
- Hegarty
- Hehir
- Hennessy
- Hession
- Hickey
- Hoban
- Hoey
- Hogan
- Hollywood
- Horan
- Horgan
- Horrigan
- Houlihan
- Howley
- Hoy
- Hynes
- Igoe
- Kane
- Kavanagh
- Keane
- Keaney
- Kearney
- Kearns
- Keating
- Keefe
- Keegan
- Keenan
- Kehoe
- Kelleher
- Kelly
- Kenna
- Kenny
- Keogh
- Keohane
- Kerrigan
- Keyes
- Keys
- Kiely
- Kiernan