Throughout the world, Jarlath (Jarlath 
) is a rare boy's forename. The first name Jarlath is characteristic of Ireland, where it is quite a rare masculine name, the United Kingdom, where it is a rare boy's name, and Australia. In absolute terms, this name is the most popular in Ireland, the United Kingdom, and Nigeria. Much less frequently, Jarlath is the last name as well as the forename.
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| Jarlath | United Kingdom, Ireland, Australia, United States, Nigeria |
| jarlath hayes Irish typographer (1924-2001), IE (b. 1924) |
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| jarlath finney British judge, GB (b. 1930) |
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| jarlath carey Gaelic football player, GB (b. 1932) |
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| jarlath conroy Irish actor, IE (b. 1944) |
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| jarlath mcdonagh Fine Gael politician from County Galway, Ireland, IE (b. 1945) |
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| jarlath cloonan Irish hurler, IE (b. 1953) |
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| jarlath fallon Gaelic football player, IE (b. 1973) |
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| jarlath killeen author, IE (b. 1976) |
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| jarlath u. umoh Nigerian veterinary scientist, NG |
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| jarlath e nally researcher |
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| jarlath regan Irish comedian, writer, illustrator and television personality, IE (b. 1980) |
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| jarlath c bolger researcher |
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| jarlath varley researcher (ORCID 0000-0002-2383-9322) |
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| jarlath byrne rodgers researcher (ORCID 0000-0001-5395-9950) |
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| jarlath o'neil-dunne |
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Lee, O'Hara, Mellett, Mcgrath, Mcardle, Mcmahon, Canning, Corbett, Brennan, Doherty, Gibbons, Heveran, Farrell, Oreilly, O'Brien, Waldron, Monaghan, Connolly, Keaveney, Johnston, O'Malley, Ffrench-Mullen, Obrien, Hughes, Coffey, Mccann, Cady, Ryan, Daly, Magee, Smyth, Cooke, Burke, Bloom, Byrne, Kelly, Cunningham, Dolan, Glynn, Lyons, Hanly, Hagan, Healy, Forde, Walsh, Quinn, Molloy, Murphy, Duffy, and Connaughton