Last name Teehan (Teehan 
) , globally, is quite a rare surname. The cognomen Teehan is characteristic of Ireland, where it is quite a rare surname, Bangladesh, where it is a rare surname, and the United States.
| VARIANT | COUNTRY |
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| Teehan | Bangladesh, Canada, Ireland, United Kingdom, United States |
| patrick teehan Irish politician, IE (b. 1904) |
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| tom teehan Irish hurler (1904-1992) (b. 1904) |
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daniel w. teehan politician in Massachusetts, US, US |
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rob teehan Canadian filmmaker |
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| john teehan Irish hurler (b. 1939) |
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| john teehan writer of science fiction |
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| virginia teehan Irish art historian, writer, curator and archivist |
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| paige teehan researcher (ORCID 0000-0003-0496-6366) |
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| barry teehan hurler, IE (b. 1982) |
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| ciaran teehan Irish darts player, IE (b. 1999) |
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