Alternative Name: Aberbîg
Morphology: aber+pig
Phonetic: abb-airr-beeg
Though most of the village is in the county borough of Blaenau Gwent, part of the village is over the border in Caerphilly county borough. The village name comes from the fact that a small stream called Nant Bîg (Nant Bige 1577) flows into the Ebbw Fawr river approximately half a mile above where the Ebbw Fawr and Ebbw Fach meet. The word "pig" in Welsh means a beak or spout and the name may derive from a description of the spot where the small stream emerged from the ground. Earlier spellings of the place names include Aberbyg 1659, Aber-Beeg 1779 and Aberbeeg from 1790.