- Lagamuwa
- Lanternhill Colony
- Legundeniya
- Levaltonwatta
- Levula
- Lewdeniya
- Lewella
- Liniyaketiya
- Liyanagaswagura
- Liyandeniya
- Liyangahapitiya
- Lorawatta Colony
- Lower Glostar
- Lukadagama
- Lulkaodutawatta
- Lunugama
- Labugama
- Leloya
- Lenadora
- Lenawala
- Lesliewatta
- Letiyahena
- Loolkade
- Labookellie Estate
- Labugolla
- Labuhena
- Lammermoor
- Landupita
- Lappanagama
- Lassapathana