All over the world, Shanahan (Shanahan 
) is a very rare mostly male, but seldom feminine given name. The given name Shanahan is habitual in the United States, where it is an extremely rare mostly male, but seldom female name, and China, where it is an extremely rare masculine name. Predominantly, Shanahan is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Shanahan | Australia, Ireland, Canada, United States, United Kingdom |
| foss shanahan New Zealand diplomat (1910-1964), NZ (b. 1910) |
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| mackenzie l shanahan researcher |
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| kid shanahan American pirate, US |
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| murray shanahan researcher, GB |
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