Cognomen Appun (Appun 
) , in the world, is a rare last name. The last name Appun is habitual in Germany, where it is a rare surname, Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. More frequently, Appun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Appun | United States, India, Malaysia, Germany |
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carl ferdinand appun German scientist (1820-1872), PL (b. 1820) |
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| anton appun German physicist and musician, DE (b. 1839) |
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| wilhelm appun German politician, DE (b. 1871) |
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| luise appun |
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