Surname Merrigan (Merrigan 
) , throughout the world, is quite a rare cognomen. The last name Merrigan is habitual in Ireland, where it is quite a common surname, Australia, where it is quite a rare surname, and the United Kingdom, where it is a rare surname. Measured by absolute frequency, it is the most numerous in the United States, Ireland, and Australia.
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| Merrigan | Australia, Ireland, Canada, United States, United Kingdom |
Merrigàn, and เมอร์ริแกน
| thomas davis merrigan (b. 1867) |
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kathleen merrigan American government official, US (b. 1959) |
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john merrigan politician in Massachusetts, US, US (b. 1961) |
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| matt merrigan Irish trade unionist, IE (b. 1922) |
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| terrence merrigan born:1950| (b. 1950) |
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| michael merrigan researcher |
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| anne b merrigan researcher |
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| celeste merrigan researcher (counselling) |
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| philip merrigan economist |
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| stephanie l merrigan researcher |
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| justin j merrigan researcher |
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| carl merrigan researcher (ORCID 0000-0002-7753-6095) |
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| leah merrigan researcher (nursing ltrhs) |
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| emma patricia merrigan Irish association football player, IE (b. 1982) |
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