Family name Coaston (Coaston 
) , in the world, is a rare surname. The family name Coaston is characteristic of New Zealand, where it is a very rare surname, the United States, and Israel. In absolute terms, the name is most common in the United States, New Zealand, and Canada. Much less frequently, Coaston is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Coaston | United Kingdom, United States, Canada, Israel, New Zealand |
| steve coaston college basketball player (1988–1989) Robert Morris |
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| jane coaston American reporter, US |
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| lou coaston college basketball player (1957–1959) Washington |
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