Sruwaddacon Bay is a tidal estuary which runs through the middle of the
Gaeltacht Kilcommon parish in
Erris,
County Mayo,
Ireland. It is of historical importance in Irish legend, an important marine habitat, an E.U. Special Area of Conservation (SAC) and an EU Special Protected Area (Birds Directive). Its translated name in English, "Stream of the Long Hound", reflects its general shape. It enters the Atlantic Ocean through
Broadhaven Bay, another
Special Area of Conservation.