Last name Roughan (Roughan 
) , in the entire world, is a rare surname. The surname Roughan is habitual in Isle of Man, where it is quite a rare surname, New Zealand, and Ireland. In absolute terms, this name is the most popular in Australia, the United States, and the United Kingdom. Very seldom, Roughan is the forename as well as the last name.
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| Roughan | United Kingdom, Australia, Ireland, United States, New Zealand |
| denise roughan Musician, librarian, NZ (b. 1963) |
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| howard roughan American writer, US (b. 1966) |
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| phillip grattan roughan researcher, Fellow of the Royal Society of New Zealand |
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| matthew roughan researcher ORCID ID = 0000-0002-7882-7329 |
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| matthew roughan Ph.D. University of Adelaide 1994 |
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| johnny roughan researcher |
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| moninya roughan Professor of Oceanography |
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| nicole roughan researcher in New Zealand |
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| emily roughan New Zealand long-distance runner (b. 1993) |
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| sean roughan Irish association football player, IE |
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