The Chubut River is located in the Patagonia region of southern Argentina. Its name comes from the Tehuelche word chupat, which means "transparent". The Argentine Chubut Province, through which the river flows, is named after it. Welsh settlers called the river "Afon Camwy", meaning "twisting river".

Y Wladfa, also occasionally Y Wladychfa Gymreig, refers to the establishment of settlements by Welsh colonists and immigrants in the Argentine Patagonia, beginning in 1865, mainly along the coast of the lower Chubut Valley. In 1881, the area became part of the Chubut National Territory of Argentina which, in 1955, became Chubut Province.