Last name Treven (Treven 
) , around the world, is a rare family name. The cognomen Treven is habitual in Slovenia, where it is quite a common surname, Serbia, where it is a rare surname, and Austria. Also, Treven is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Treven | South Africa, Austria, Serbia, United States, Slovenia |
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ulrico di treven German priest, DE (b. 1150) |
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| franc treven SI (b. 1857) |
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| marco treven researcher |
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| sonja treven SI |
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| roman treven SI |
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| primož treven SI |
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