Cognomen Conahan (Conahan 
) , in the entire world, is a rare last name. The surname Conahan is characteristic of the United States, where it is a rare surname, Australia, where it is a very rare surname, and Canada. Not in comparison with a country's population, the name is most common in the United States, Australia, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Conahan | Australia, Canada, Philippines, United States, United Kingdom |
Conaghan, Coningham, Connachan, Connaghan, Conyngham, Cuningham, Cuninghame, Cunningham, Cunninghame, Cunynghame, Каннингем, Каннінгем, and קנינגהם
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daniel conahan American murderer, US (b. 1954) |
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| walter conahan American politician, US (b. 1927) |
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| michael conahan American convicted felon and former judge, US (b. 1952) |
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| joe conahan college basketball player (1975–1978) Drexel |
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