Béal an Daingin or Béal a' Daingin (anglicized as Bealadangan) is a small Gaeltacht village in the heart of Connemara (Conamara), County Galway, Ireland. The main language is Irish, and all but a few of the elderly population also speak English. There is a pub, a post office and an elementary school (Toureen) a couple of miles from the village.
This area is rich in tradition. Many of the residents continue to cut turf (peat) for use in heating their homes during the long winter months. Sean Nós singing is still performed locally, and is rarely heard outside the area. Raidió na Gaeltachta is the local Irish-language radio station and many local singers and musicians can be heard through their website.
The name derives from the Irish béal an daingin meaning the mouth of the secure place.