| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 1901 | Levana | Latin | Raise up. Levana was the Roman mythological goddess and protectress of newborns. | F | |
| 1902 | Levema | Latin | Goddess of thieves. | F | |
| 1903 | Levka | Latin | Lion. | M | |
| 1904 | Levushka | Latin | Lion. | M | |
| 1905 | Lew | Latin | Lion. | M | |
| 1906 | Liana | Latin | Diminutive of Juliana F: Youthful. The feminine form of Julian. Famous Bearer: Former Queen Juliana of the Netherlands. | F | |
| 1907 | Liana | Latin | Diminutive of Juliana F: Youthful. The feminine form of Julian. Famous Bearer: Former Queen Juliana of the Netherlands. | M | |
| 1908 | Lianne | Latin | Diminutive of Julianne: Downy grace. A compound of the names Julie and Anne. Also can be interpreted as the feminine form of Julian: Youthful. Jove's child. | F | |
| 1909 | Libentina | Latin | Venus's surname. | F | |
| 1910 | Liber | Latin | Another name for Dionysus. | M | |
| 1911 | Libera | Latin | Liberty. | F | |
| 1912 | Libertas | Latin | Liberty. | F | |
| 1913 | Libitina | Latin | Protectress of the dead. | F | |
| 1914 | Lichas | Latin | Friend of Hercules. | M | |
| 1915 | Licus | Latin | Friend of Hercules. | M | |
| 1916 | Lida | Latin | Sparkle. | F | |
| 1917 | Lil | Latin | Diminutive of Lilian: Lily (after the flower). Pure. | F | |
| 1918 | Lila | Latin | Lily. | F | |
| 1919 | Lilia | Latin | The flower lily is a symbol of innocence; purity and beauty. | F | |
| 1920 | Lilian | Latin | Lily (after the flower). Pure. | F | |