Paiva
Paiva is a surname of Portuguese origin. It is believed to derive from a patronymic, meaning "son of Paiva". The name Paiva itself may have originated from a geographical location, possibly related to the Paiva River in Portugal. Surnames originating from rivers or geographical features are common in many cultures, suggesting a likely connection to this area.
The surname is found predominantly in Portugal and Brazil, reflecting historical migration patterns and colonial ties.