José Antonio Manso de Velasco y Sánchez de Samaniego, KOS was a Spanish soldier and politician who served as governor of Chile and viceroy of Peru.

The Royal Governor of Chile ruled over the Spanish colonial administrative district called the Captaincy General of Chile, and as a result the Royal Governor also held the title of a Captain General. There were 66 such governors or captains during the Spanish conquest and the later periods of Spanish-centered colonialism. Since the first Spanish–Mapuche parliaments in the 17th century it became an almost mandatory tradition for each governor to arrange a parliament with the Mapuches.