| U+ | art-254 |
| 0345 | |
| Unicode Character Names | art-315 | COMBINING GREEK YPOGEGRAMMENI |
| Unicode Character Names | art-315 | GREEK NON-SPACING IOTA BELOW |
| American English | eng-004 | COMBINING GREEK IOTA BELOW |
| français | fra-000 | DIACRITIQUE GREC IOTA SOUSCRIT |
| français | fra-000 | YPOGEGRAMMENI |