Cognomen Coiner (Coiner 
) , in the world, is a rare surname. The cognomen Coiner is habitual in the United States, where it is a rare surname, Singapore, where it is a very rare surname, and New Zealand. Not in comparison with a country's population, this name is the most popular in the United States, Canada, and Singapore.
| VARIANT | COUNTRY |
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| Coiner | South Africa, Singapore, United States, Canada, New Zealand |
| charles toucey coiner American artist (1898-1989), US (b. 1898) |
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| charles coiner Idaho State Senator, US (b. 1943) |
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| charlie coiner American football coach, US (b. 1960) |
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| ryan coiner American soccer player, US (b. 1979) |
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| savannah coiner American association football player, US (b. 1993) |
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