Cognomen Simington (Simington 
) , in the world, is quite a rare last name. The last name Simington is characteristic of Ireland, where it is a rare surname, the United States, and Australia. Measured by absolute frequency, the name is most common in the United States, Canada, and Australia.
| VARIANT | COUNTRY |
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| Simington | United Kingdom, Australia, Ireland, United States, Canada |
| milt simington American football player (1918–1943), US (b. 1918) |
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| nicholas a. simington British painter, GB (b. 1930) |
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nathan simington American lawyer |
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