Prieto is a surname of Spanish origin.^{[citation needed]} Notable people with the surname include:

• Abelardo Escobar Prieto (1938–2019), Mexican government official
• Alfredo Prieto (1965–2015), Salvadoran-American serial killer
• Amy Prieto, Colombian-American chemist
• Antonio Prieto (1926–2011), Chilean actor
• Carlos Prieto (born 1937), Mexican cellist
• Chris Prieto (born 1972), American baseball player and coach
• Guillermo Prieto (1818–1897), Mexican writer and government official
• Indalecio Prieto (1883–1962), Spanish politician
• Isabel Prieto de Landázuri (1833–1876), Spanish-Mexican poet and dramatist
• José Joaquín Prieto (1786–1854), 4th president of Chile
• Juan António Prieto, Spanish paralympic runner
• Juan Carlos Prieto, Spanish paralympic high jumper
• Lorene Prieto, Chilean-New Zealander actor
• Manuel Bulnes Prieto (1799–1866), general and 5th president of Chile
• Manuel García-Prieto, 1st Marquis of Alhucemas (1859–1938), Spanish prime minister
• Margarita Prieto Yegros (1936–2017), Paraguayan writer and journalist
• María Isabel Prieto Serrano (born 1973), Spanish politician
• Óscar Vargas Prieto (1917–1989), Peruvian soldier
• Rafael Reyes Prieto (1849–1921), general and president of Colombia
• Rodrigo Prieto (born 1965), Mexican cinematographer
• Rosario Prieto (born 1942), actress from Dominican Republic
• Victorio Riego Prieto (1932–2009), Paraguayan chess master
• Wilfredo Prieto (born 1978), Cuban artist

• Juan Prieto (disambiguation)