| Name | Group | Language of Origin | Languages of Use | Meaning/Translation or Related Words | US 2024 |
| Jacenty | Hyacinth/Hyacinth | Old Greek | Polish | | |
| Jacinda | Hyacinth/Hyacinth | Old Greek | English | | |
| Jacinta | Hyacinth/Hyacinth | Old Greek | Portuguese, Spanish | | |
| Jacinto | Hyacinth/Hyacinth | Old Greek | Portuguese, Spanish | | |
| Jano | Alexander/Alexandra | Old Greek | German | he who wards off (other) men, defender of men | |
| Jase | Jason | Old Greek | English | Words: heal | #636 |
| Jason | Jason | Old Greek | English | Words: heal | #148 |
| Jayce | Jason | Old Greek | English | Words: heal | #169 |
| Jayceon | Jason | Old Greek | English | Words: heal | #621 |
| Jayse | Jason | Old Greek | English | Words: heal | |
| Jayson | Jason | Old Greek | English | Words: heal | #621 |
| Jela | Helen | Old Greek | Slavic | maybe the torch | |
| Jelena | Helen | Old Greek | Russian | maybe the torch | |
| Jelka | Helen | Old Greek | Hungarian | maybe the torch | |
| Kalliope | Kalliope | Old Greek | German, English | beautiful voice | |
| Kasandra | Cassandra | Old Greek | English | Words: protrude / man | |
| Kassandra | Cassandra | Old Greek | German | Words: protrude / man | |
| Kassiopeia | Kassiopeia | Old Greek | German | Words: cassia | |
| Khloe | Chloe | Old Greek | English | green shoot, young shoot | #232 |
| Kloe | Chloe | Old Greek | English | green shoot, young shoot | |
| Kyrene | Kyrene | Old Greek | German, English | | |
| Lainey | Helen | Old Greek | English | maybe the torch | #38 |
| Laney | Helen | Old Greek | English | maybe the torch | #689 |
| Lean | Leander/Leandra | Old Greek | German | maybe man of the people (?), lion of a man | |
| Leander | Leander/Leandra | Old Greek | German | maybe man of the people (?), lion of a man | |
| Leandra | Leander/Leandra | Old Greek | Italian | maybe man of the people (?), lion of a man | |
| Léandre | Leander/Leandra | Old Greek | French | maybe man of the people (?), lion of a man | |
| Leandro | Leander/Leandra | Old Greek | Italian | maybe man of the people (?), lion of a man | #499 |
| Leandros | Leander/Leandra | Old Greek | Greek | maybe man of the people (?), lion of a man | |
| Leano | Leander/Leandra | Old Greek | German | maybe man of the people (?), lion of a man | |
| Leda | Leda | Old Greek | German, English | | |
| Leena | Helen | Old Greek | Finnish | maybe the torch | |
| Leka | Alexander/Alexandra | Old Greek | Albanian | he who wards off (other) men, defender of men | |
| Lena | Helen | Old Greek | German, Scandinavian | maybe the torch | #263 |
| Léna | Helen | Old Greek | Hungarian | maybe the torch | |
| Leni | Helen | Old Greek | German | maybe the torch | |
| Lenia | Helen | Old Greek | Russian | maybe the torch | |
| Lenio | Helen | Old Greek | Greek | maybe the torch | |
| Lenja | Helen | Old Greek | Russian | maybe the torch | |
| Lenka | Helen | Old Greek | Polish, Czech | maybe the torch | |
| Lenna | Helen | Old Greek | Estonian | maybe the torch | |
| Leny | Helen | Old Greek | German | maybe the torch | |
| Lenya | Helen | Old Greek | Russian | maybe the torch | |
| Lex | Alexander/Alexandra | Old Greek | German, English | he who wards off (other) men, defender of men | |
| Lexi | Alexander/Alexandra | Old Greek | English | he who wards off (other) men, defender of men | #563 |
| Lexie | Alexander/Alexandra | Old Greek | English | he who wards off (other) men, defender of men | |
| Lino | Linus | Old Greek | Italian | Words: mourn, grief | |
| Linus | Linus | Old Greek | German, English | Words: mourn, grief | |
| Lona | Apollonius/Apollonia | Old Greek | German | | |
| Lons | Apollonius/Apollonia | Old Greek | Dutch | | |
| Maia | Maja | Latin | Italian | maybe wet nurse, midwife | #459 |
| Maiya | Maja | Latin | English | maybe wet nurse, midwife | |
| Maj | Maja | Latin | Scandinavian | maybe wet nurse, midwife | |
| Maja | Maja | Latin | German, Scandinavian | maybe wet nurse, midwife | |
| Malani | Melanie | Old Greek | English | the dark, the black | #331 |
| Maya | Maja | Latin | English | maybe wet nurse, midwife | #51 |
| Medea | Medea | Old Greek | German, English | Words: think, ponder | |
| Meilani | Melanie | Old Greek | English | the dark, the black | #814 |
| Melani | Melanie | Old Greek | German, Dutch, English | the dark, the black | |
| Melania | Melanie | Old Greek | Spanish, Italian | the dark, the black | |
| Melanie | Melanie | Old Greek | German, Dutch, English | the dark, the black | #122 |
| Mélanie | Melanie | Old Greek | French | the dark, the black | |
| Melanija | Melanie | Old Greek | Latvian | the dark, the black | |
| Melany | Melanie | Old Greek | English | the dark, the black | #437 |
| Melis | Melissa | Old Greek | German | the bee | |
| Melisa | Melissa | Old Greek | German, Turkish | the bee | |
| Melissa | Melissa | Old Greek | German | the bee | #376 |
| Mélissa | Melissa | Old Greek | French | the bee | |
| Melissza | Melissa | Old Greek | Hungarian | the bee | |
| Melitta | Melissa | Old Greek | German | the bee | |
| Mélyssa | Melissa | Old Greek | French | the bee | |
| Milani | Melanie | Old Greek | English | the dark, the black | #278 |
| Minos | Minos | Unknown | German, English | | |
| Mitar | Dimitri/Demetria/Dimitra | Old Greek | Slavic | dedicated to Demeter | |
| Mitica | Dimitri/Demetria/Dimitra | Old Greek | Romanian | dedicated to Demeter | |
| Mitja | Dimitri/Demetria/Dimitra | Old Greek | Russian | dedicated to Demeter | |
| Morpheus | Morpheus | Old Greek | German, English | Words: shape | |
| Mya | Maja | Latin | English | maybe wet nurse, midwife | #366 |
| Myrene | Myrine | Unknown | English | | |
| Myrine | Myrine | Unknown | English | | |
| Narcisa | Narcisse/Narcissa | Old Greek | Portuguese, Romanian | Words: sleep, numbness / narcissus | |
| Narciso | Narcisse/Narcissa | Old Greek | Portuguese, Spanish, Italian | Words: sleep, numbness / narcissus | |
| Narcissa | Narcisse/Narcissa | Old Greek | English | Words: sleep, numbness / narcissus | |
| Narcisse | Narcisse/Narcissa | Old Greek | French | Words: sleep, numbness / narcissus | |
| Narziss | Narcisse/Narcissa | Old Greek | German | Words: sleep, numbness / narcissus | |
| Narziß | Narcisse/Narcissa | Old Greek | German | Words: sleep, numbness / narcissus | |
| Nausica | Nausicaa | Old Greek | Italian | Words: ship | |
| Nausicaa | Nausicaa | Old Greek | English | Words: ship | |
| Nausikaa | Nausicaa | Old Greek | German | Words: ship | |
| Neféli | Neféli | Old Greek | Greek | Words: cloud | |
| Nelli | Helen | Old Greek | German | maybe the torch | |
| Nerea | Nereus/Nerea | Old Greek | Spanish | | |
| Nereus | Nereus/Nerea | Old Greek | German, English | | |
| Nerina | Nerina | Old Greek | Italian | sea nymph | |
| Nerio | Nereus/Nerea | Old Greek | Italian | | |
| Nestor | Nestor | Old Greek | German | the homecoming | |
| Nestore | Nestor | Old Greek | Italian | the homecoming | |
| Nice | Nike | Old Greek | Italian | Words: victory | |
| Nike | Nike | Old Greek | German | Words: victory | |
| Olek | Alexander/Alexandra | Old Greek | Polish | he who wards off (other) men, defender of men | |