| U+ | art-254 |
| 00D4 | |
| Unicode Character Names | art-315 | LATIN CAPITAL LETTER O CIRCUMFLEX |
| Unicode Character Names | art-315 | LATIN CAPITAL LETTER O WITH CIRCUMFLEX |
| American English | eng-004 | LATIN CAPITAL LETTER O WITH CIRCUMFLEX |
| français | fra-000 | LETTRE MAJUSCULE LATINE O ACCENT CIRCONFLEXE |