| U+ | art-254 |
| 03D4 | |
| Unicode Character Names | art-315 | GREEK CAPITAL LETTER UPSILON HOOK DIAERESIS |
| Unicode Character Names | art-315 | GREEK UPSILON WITH DIAERESIS AND HOOK SYMBOL |
| American English | eng-004 | GREEK UPSILON WITH DIAERESIS AND HOOK SYMBOL |
| français | fra-000 | LETTRE MAJUSCULE GRECQUE UPSILON TRÉMA ET CROCHET |
| français | fra-000 | SYMBOLE GREC UPSILON TRÉMA ET CROCHET |