Barbalho is a surname. Notable people with the surname include:
Álvaro Barbalho Uchôa Cavalcanti (1818–1889), Brazilian judge and politician Elcione Zahluth Barbalho (born 1944), Brazilian pedagogue and politician Helder Barbalho (born 1979), Brazilian administrator, politician, the current governor of the state of Pará Jader Barbalho (born 1944), Brazilian politician, businessman and landowner from the state of Pará