| Code | Name | Region |
|---|---|---|
| BELHO | Letterhoutem | VOV |
| BELEU | Leuven | VBR |
| BELHT | Leuze-en-hainaut | WHT |
| BELTA | Leval-trahegnies | WHT |
| BELCI | Liberchies | WHT |
| BELBN | Libin | WLX |
| BELIB | Libramont-chevigny | WLX |
| BELHA | Lichtaart | VAN |
| BELIC | Lichtervelde | VWV |
| BELDK | Liedekerke | VBR |
| BELHK | Liefkenshoek | VOV |
| BELGG | Liege | WLG |
| BELIE | Lier | VAN |
| BELNX | Lierneux | WLG |
| BELER | Liers | WLG |
| BELIV | Lievegem | VOV |
| BELGN | Ligne | WHT |
| BELUE | Ligneuville | WLG |
| BELGY | Ligney | WLG |
| BELLE | Lille | VAN |
| BELEG | Ledegem | VWV |
| BELFA | Leefdaal | VBR |
| BELRE | Leernes | WHT |
| BELST | Leest | VAN |
| BELFE | Leffinge | VWV |
| BELGI | Leglise | WLX |
| BELSE | Leisele | VWV |
| BELBE | Lembeek | VBR |
| BELKE | Lembeke | VOV |
| BELND | Lendelede | VWV |
| BELIK | Lennik | VBR |
| BELNS | Lens | WHT |
| BELPG | Leopoldsburg | VLI |
| BELBU | Les Bulles | WLX |
| BEBOV | Les-bons-villers | WHT |
| BELCA | L'escailliere | WHT |
| BELDI | Lesdain | WHT |
| BELES | Lessines | WHT |
| BELSY | Lesterny | WLX |
| BELVE | Lesve | WNA |
| BELDO | Langdorp | VBR |
| BELGL | Langelede | VOV |
| BELAK | Langemark | VWV |
| BELPO | Langemark-poelkapelle | VWV |
| BELGB | Langerbrugge | VOV |
| BELGO | Langerlo | VLI |
| BELNK | Lanklaar | VLI |
| BELQA | Lanquesaint | WHT |
| BELPI | Laplaigne | WHT |
| BELRM | Larum | VAN |