Family name Halloran (Halloran 
, Халлоран 
) , in all the world, is quite a common last name. The cognomen Halloran is characteristic of Ireland, where it is quite a common surname, Australia, where it is quite a rare surname, and the United States. Very seldom, Halloran is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Halloran | Ireland, Canada, United Kingdom, United States, Australia |
| Халлоран | Russia |
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laurence hynes halloran Convict transported to Australia, AU (b. 1765) |
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henry halloran Australian civil servant and poet (1811-1893), ZA (b. 1811) |
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| henry halloran Australian property developer (b. 1869) |
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bob halloran sports executive and former national CBS sportscaster, US (b. 1934) |
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kay halloran American politician, US (b. 1937) |
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| robert halloran Canadian swimmer, CA (b. 1906) |
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| frank halloran Australian rules footballer (b. 1912) |
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| jack halloran American composer and choral director (1916-1997), US (b. 1916) |
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| walter halloran American priest, US (b. 1921) |
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dan halloran lawyer, politician, US (b. 1972) |
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| james halloran British media scholar (b. 1927) |
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lia halloran American artist, US (b. 1977) |
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amy halloran screenwriter |
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leo j. halloran politician in Massachusetts, US, US |
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antoinette halloran singer, AU |
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