The Banc Ty'nddôl sun-disc is a small, decorated, gold ornament discovered at Cwmystwyth, Ceredigion, Wales. It most likely was part of a funerary garment and is more than 4,000 years old, which makes it the earliest gold artifact found in Wales. It was discovered on 16 October 2002 by a team of archaeologists who were investigating the site of Roman and medieval lead smelting hearths below the Bronze Age copper mine on Copa Hill.