Gumucio is a surname. Notable people with the surname include:
Alfonso Gumucio Dagron (born 1950), Bolivian writer, filmmaker, journalist, photographer and development communication specialist Alfonso Gumucio Reyes (1914-1981), Bolivian politician Arantza Gumucio (born 1989), Chilean competitive sailor Begoña Gumucio (born 1992), Chilean competitive sailor Cristián Parker Gumucio (born 1953), Chilean sociologist Juan Carlos Gumucio (1949–2002), Bolivian-born journalist and writer Mariano Baptista Gumucio (1933–2026), Bolivian politician and writer Rafael Gumucio (born 1970), Chilean writer and comedian Rafael Agustín Gumucio (1909–1996), Chilean lawyer, academic, and politician