K
- (County Galway) Kylemore Bridge
- (County Galway) Killaun
- (County Galway) Kinreask
- (Roscommon) Kilcashel
- (Roscommon) Keelty
- (Roscommon) Kilnamanagh
- (Roscommon) Kidlawn
- (County Galway) Kill
- (County Galway) Keelkyle Bridge
- (Mayo County) Killeen
- (Mayo County) Killeennabausty
- (Mayo County) Kildun
- (Mayo County) Kilhale
- (Mayo County) Kilnageer
- (Mayo County) Knockatemple
- (Mayo County) Kilmore
- (Mayo County) Knockanillaun
- (Mayo County) Knocksbarrett
- (Mayo County) Knockroe
- (Sligo) Killanly
- (Sligo) Knockbrack
- (Mayo County) Knockadangan Bridge
- (Mayo County) Killacorraun
- (Mayo County) Knockbrack
- (Mayo County) Knocknahorna
- (Mayo County) Knockmoyleen
- (Mayo County) Knocknalina
- (Mayo County) Knockshanbo
- (Mayo County) Kilgalligan
- (Mayo County) Knockananny