António dos Santos Graça (1882—1956) was a Portuguese ethnologist, journalist and politician notable for the study and preservation of Poveiro culture, history, and folklore. He was born and also died at Póvoa de Varzim.
Among his works are O Poveiro (1932), A Crença do Poveiro nas Almas Penadas 1(1933), Inscrições Tumulares por Siglas (1942) and A Epopeia dos Humildes (1952).