Family name Lojen (Lojen 
, لوچين ) , all around the world, is a rare surname. The last name Lojen is characteristic of Southern Europe, particularly Croatia, where it is quite a rare surname, Slovenia, and Serbia, where it is a rare surname. In absolute terms, it most frequently occurs in Croatia, Egypt, and Serbia. More prevalently, Lojen is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Lojen | Iraq, Egypt, India, Syria, Croatia |
| لوچين | Egypt |
| dragutin lojen association football player (1919-1999), HR (b. 1919) |
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| gerhard lojen Austrian architect and painter (1935-2005), AT (b. 1935) |
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| erika lojen AT (b. 1938) |
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| mladen lojen cyclist |
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| darja žunič-lojen SI |
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| gorazd lojen SI |
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| dane lojen SI |
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| mattija lojen Croatian cyclist, HR |
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