Pater Patriae (plural Patres Patriae) was an honorific title in ancient Rome. In Latin, it means "father of the country", or more literally, "father of the fatherland".
The title was granted by the Roman Senate. During the Roman Republic, it was given only two times: to Camillus and Cicero. Under the Roman Empire, it was exclusively granted to the Roman emperor, usually after many years of successful rule. Not all emperors were offered the title, while others were offered it but refused to accept. A total of 23 emperors received the title.
During the early modern and late modern periods, the same Latin title was granted to several national leaders by their subjects or parliaments. More recently, the equivalent title has been father of the nation, translated into the national language.