| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Lucy | LOO-see | English | ||
| Lucyna | luw-TSI-nah | Polish | ||
| Ludde | - | Swedish | ||
| LudmiŁA | luwt-MEE-wah | Polish | ||
| Ludmila | - | Czech, Russian | ||
| Ludmilla | - | Russian, Bulgarian | ||
| Ludoviko | loo-do-VEE-ko | Esperanto | ||
| Ludvig | - | Swedish, Norwegian, Danish | ||
| Ludvik | - | Slovene | ||
| Ludwik | LUWT-veek | Polish | ||
| Ludwika | luwt-VEE-kah | Polish | ||
| Luella | loo-EL-ə | English | ||
| Lug | - | Irish Mythology | ||
| Lugaid | - | Irish Mythology | ||
| Lugh | - | Irish Mythology |