L
- (County Cork) Lisheen
- (County Cork) Lisgoold
- (Clare) Lisdeen
- (Kerry) Lisdargan
- (Clare) Liscasey
- (County Cork) Lisbealadea
- (County Tipperary) Limerick Junction
- (County Cork) Lickowen
- (County Tipperary) Leugh
- (Kerry) Letterfinish
- (Kerry) Letterdunane
- (Kerry) Lerrig
- (Kerry) Leansaghane
- (Kerry) Leanamore
- (Kerry) Lauragh
- (County Tipperary) Lattin
- (County Tipperary) Laffansbridge
- (County Cork) Ladysbridge
- (Clare) Labasheeda
- (County Cork) Lahard
- (County Cork) Loughbeg
- (Kerry) Liberty Hall
- (Kerry) Letter
- (Kerry) Lomanagh
- (Kerry) Lackabaun
- (Kerry) Lamb Island
- (Kerry) Laune Bridge
- (Kerry) Lakeview
- (Kerry) Leamnaguila
- (Kerry) Lisbabe