Family name Eulen (Eulen 
) , globally, is a rare surname. The surname Eulen is characteristic of Germany, where it is a rare surname, Netherlands, and Spain, where it is a very rare surname. Measured by absolute frequency, it most frequently occurs in Germany, Netherlands, and Philippines. Likewise, Eulen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Eulen | Philippines, China, Spain, Brazil, Germany |
| siegfried emmo eulen DE (b. 1890) |
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| eike eulen (b. 1936) |
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| eike eulen DE (b. 1936) |
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