Yarza is a Spanish surname. Notable people with the surname include:
Antonio Arregui Yarza (1939–2026), Ecuadorian bishop Enrique Yarza (1930–2001), Spanish footballer Jenara Vicenta Arnal Yarza (1902–1960), Spanish chemist Joaquín Yarza (1881–1972), Spanish footballer Joaquín Yarza Luaces (1936–2016), Spanish art historian José Nasazzi (1901–1968), Uruguayan footballer, full name José Nasazzi Yarza Manuel Yarza (1884–?), Spanish footballer María Begoña Yarza (born 1964), Chilean politician Natividad Yarza Planas (1872–1960), Spanish politician Rosita Yarza (1922–1996), Spanish actress