Cognomen Birns (Birns 
) , throughout the world, is a rare surname. The cognomen Birns is characteristic of Singapore, where it is a rare surname, Canada, and the United States, where it is a very rare surname. In absolute terms, the name is most common in the United States, Canada, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Birns | United Kingdom, Australia, Singapore, United States, Canada |
| alex birns American mobster (b. 1907) |
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| jack birns photographer, US (b. 1919) |
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| larry birns American activist, US (b. 1929) |
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| nicholas birns scholar of literature, including fantasy and Australian literature (b. 1965) |
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| jonathan birns researcher (ORCID 0000-0001-8070-9519) |
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