- Labasheeda
- Ladder Rock
- Lakyle
- Lakyle
- Landsdowne Bridge
- Lannaght
- Latoon Bridge
- Lavally
- Leadmore East
- Leadmore West
- Leaghort
- Leaheen
- Leana
- Lecarrow
- Lehinch
- Leitrim
- Leitrim
- Lellesagle
- Letterkelly
- Lifford
- Liscannor
- Liscasey
- Liscrona
- Liscullaun
- Lisdeen
- Lisdoonvarna
- Lisgurreen
- Lisheen
- Lisheencrony
- Lisheenfurroor