Family name Uldedaj (Uldedaj 
) , globally, is a rare cognomen. The family name Uldedaj is characteristic of Albania, where it is quite a rare surname, Italy, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Uldedaj | United States, United Kingdom, Albania, Italy |
| gjoke uldedaj Albanian politician, AL (b. 1959) |
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| jurgen uldedaj Albanian boxer, AL (b. 1997) |
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| juergen uldedaj German boxer (b. 1997) |
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