Surname Duignan (Duignan 
) , in the entire world, is quite a rare last name. The cognomen Duignan is habitual in Ireland, where it is quite a common surname, New Zealand, where it is quite a rare surname, and Australia, where it is a rare surname. Not in comparison with a country's population, the name is most common in Ireland, the United States, and the United Kingdom. Very seldom, Duignan is the forename as well as the last name.
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| Duignan | United Kingdom, United States, Ireland, Australia, New Zealand |
| william henry duignan British solicor, antiquarian and writer, GB (b. 1824) |
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| peadar duignan Irish politician (1898-1955), IE (b. 1898) |
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| packie duignan Irish musician, IE (b. 1922) |
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| peter duignan born:1926-08-06|died:2012|; Duignan, Peter; Duignan, Peter (Peter J.); Duignan, Peter 1926-2012; Duignan, Peter J. (b. 1926) |
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| seán duignan journalist, IE (b. 1936) |
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| john duignan Scottish economist and writer, GB (b. 1946) |
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| noel duignan Canadian politician, CA (b. 1948) |
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| john duignan former Scientologist (b. 1963) |
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| michael duignan Irish hurler and Gaelic football player, IE (b. 1968) |
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| michael duignan bishop of Clonfert, IE (b. 1970) |
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| pat duignan Irish rugby union player, CA (b. 1972) |
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| kate duignan New Zealand writer, NZ (b. 1974) |
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| emma duignan researcher |
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| maria duignan researcher |
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| timothy t duignan researcher |
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