| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Leicester | cnl00011074 | England | -1.13 | 52.63 | |
| Leiden | cnl00031387 | Netherlands | 4.5 | 52.1491666666667 | |
| Leiden [non-CERL] | — | — | — | — | |
| Leiden\Lyon [non-CERL] | — | — | — | — | |
| Leiderdorp | cnl00005282 | Netherlands | 4.53333333333333 | 0.35 | |
| Leidschendam | — | Netherlands | 4.395556 | 52.08 | |
| Leigh | cnl00025177 | England | — | — | |
| Leipzig | cnl00016122 | Germany | 12.33 | 51.2997222222222 | |
| Leipzig [non-CERL] | — | — | — | — | |
| Leiria | cnl00011082 | — | -8.8 | 39.75 | |
| Leisnig | cnl00011083 | Germany | 12.92 | 51.17 | |
| Leith | cnl00026693 | Scotland | -3.16916666666667 | 55.9691666666667 | |
| Lemberg | cnl00011089 | Germany | 7.66944444444445 | 49.17 | |
| Lemgo | cnl00011091 | Germany | 8.9 | 52.03 | |
| Lendinara | cnl00011093 | Italy | 11.5997222222222 | 45.0797222222222 | |
| Lenzen | cnl00032214 | Germany | — | — | |
| Léogane | cnl00018540 | Haiti | — | — | |
| León | cnl00011117 | Spain | -5.57 | 42.6 | |
| Leonberg | cnl00031648 | Germany | 9.01944444444445 | 48.7991666666667 | |
| Leonessa | cnl00025323 | — | 12.9630555555556 | 42.5616666666667 | |
| Lerma | cnl00003080 | Spain | -3.75 | 42.0330555555556 | |
| Les Andelys | cnl00002814 | France | 1.4125 | 49.2461111111111 | |
| Lesbos | cnl00027426 | Greece | 26.175146 | 39.367146 | |
| Lescar | cnl00001647 | France | -0.434444444444444 | 43.3333333333333 | |
| Lesmahagow (Lanarkshire) | — | Scotland | -3.887 | 55.638 |