Last name Garrigan (Garrigan 
) , all around the world, is quite a rare family name. The surname Garrigan is habitual in Ireland, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and the United States.
| VARIANT | COUNTRY |
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| Garrigan | Canada, Australia, United States, United Kingdom, Ireland |
| jacques garrigan Book seller, FR (b. 1725) |
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philip joseph garrigan Catholic bishop (1840-1919), US (b. 1840) |
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| jim garrigan AU (b. 1905) |
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liam garrigan English actor, GB (b. 1981) |
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| alison garrigan American actress and musician, US (b. 1958) |
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| hannah garrigan researcher |
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| marybeth garrigan Former director of the National Eagle Center 2000-2012, US |
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| bill garrigan college basketball player (1975–1975) Saint Francis (PA) |
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| mike garrigan American musician, US |
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| daniel garrigan researcher |
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| mike garrigan Canadian bicycle racer, CA (b. 1981) |
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| siobhán garrigan GB |
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| stephen garrigan |
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