Location in Ireland
|Elevation||93 m (305 ft)|
|Irish Grid Reference|
|Béal Deirg is the only official name. The anglicized spellings Belderg and Belderrig have no official status.|
Béal Deirg (anglicized as Belderg or Belderrig) is a Gaeltacht village and townland in County Mayo, Ireland. At Belderrig Harbour there is a Mesolithic / Neolithic site dating to 4500-2500 cal. BC. The Céide Fields archaeological site lies about 6 km to the east of Belderrig.