Fialho is a Portuguese surname. Notable people with this surname include:Alan Fialho, Brazilian football player Barbara Fialho, Brazilian model and singer Éder Fialho, Brazilian long-distance runner Fialho Gouveia (1935–2004), Portuguese television and radio host Fialho de Almeida (1857–1911), Portuguese writer, journalist and translator José Eduardo Fialho Gouveia, Portuguese television presenter
