Prince of the Peace (Spanish: Príncipe de la Paz) was a life title in the Peerage of Spain, granted in 1795 by Charles IV to Manuel Godoy, his favourite and Secretary of State.

[1] Despite being originally created by Charles IV as hereditary, his son Ferdinand VII quickly revoked all of Godoy's titles as soon as he became king in 1808.

The general's unpopularity amongst the population as well as Spanish customs not allowing any prince titles (a dignity exclusively reserved for the heir to the throne) were some of the reasons that fuelled this.

Years later, Isabella II rehabilitated all of his titles by Royal Decree of 31 May 1847, with the exception of Prince of the Peace, considering it alien to Spanish peerage tradition.

Other exceptions are found in the princely titles granted by the monarchs of Spain in their capacity as sovereigns of other European territories: Netherlands, Milan, Naples, Sicily, etc.