Family name 井出 (井出 
) , throughout the world, is a very rare last name. The cognomen 井出 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 井出 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 井出 | China |
| 井出弘之 Japanese translator (1936-2015), JP (b. 1936) |
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| 井出明 JP (b. 1968) |
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| 井出直美 Japanese animator, JP |
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