Reynaldo is the Spanish form of Reynold, a Germanic name made of ragin, counsel, and wald, rule, so it means "ruler by counsel" or "wise ruler". It is a traditional choice in Mexico, the Philippines and Puerto Rico. Reynaldo ranked number 758 in the United States in 2000, peaked at number 667 in 2001 and has declined steadily since; in 2025 it ranks number 1652 with 102 boys.