S
- (County Galway) Shanbally
- (County Galway) Saint Brendan’s
- (County Galway) Skenahincha
- (County Galway) Slaghty
- (County Galway) Spa Islands
- (County Galway) Stoneyisland
- (County Galway) Silver Islands
- (County Galway) Shanbally
- (County Galway) Springvale
- (County Galway) Shangarry
- (County Galway) Skehanagh
- (County Galway) Sinclair’s Village
- (County Galway) Shanballard
- (County Galway) Slieveanulty
- (County Galway) Skerdmore
- (County Galway) Shinnanagh
- (County Galway) Shanaveag Bridge
- (County Galway) Shanvallybeg
- (Mayo County) Sraheens
- (Mayo County) Sraheens
- (Mayo County) Shanaghy
- (Mayo County) Spaddagh
- (Mayo County) Silver Ford
- (Mayo County) Shannasmore
- (Mayo County) Stoneparkbrogan
- (Mayo County) Slievanagark
- (Mayo County) Streamstown
- (Mayo County) Srahyconigaun
- (Mayo County) Srahgraddy
- (Mayo County) Srahnakilly