L
- (Province of Sarangani) Ladol
- (Province of South Cotabato) Labu
- (Cotabato) Labas
- (Province of Sarangani) Labañgal
- (Province of South Cotabato) Labangal
- (Province of Sarangani) Libas
- (Province of South Cotabato) Libertad
- (Cotabato) Latian
- (Cotabato) Lower Bulanan
- (Cotabato) Lagumbingan
- (Cotabato) Lower Libungan
- (Province of Sultan Kudarat) Lutayan Market
- (Province of South Cotabato) Lampaday
- (Province of Sultan Kudarat) Lagandang
- (Province of South Cotabato) Lumangko
- (Province of Sultan Kudarat) Lilit
- (Cotabato) Lanao
- (Province of South Cotabato) Lapu
- (Province of Sarangani) Lower Malalag
- (Province of South Cotabato) Libas
- (Province of South Cotabato) Liberty
- (Province of Sarangani) Lumatil
- (Province of South Cotabato) Lampitak
- (Province of South Cotabato) Lampari
- (Province of South Cotabato) Lunen
- (Province of South Cotabato) Lumakil
- (Province of South Cotabato) Lapuz
- (Province of South Cotabato) Liberty
- (Cotabato) Limbalod
- (Cotabato) Liliongan