Meaning and history
Rio means "river" in Spanish and Portuguese and is used as a modern place and nature name, especially through the city of Rio de Janeiro. It also occurs in Japanese, where its meaning depends on the kanji chosen. Notable bearers include footballer Rio Ferdinand and Japanese actress Rio Yamashita.
Rio moved from #517 to #532 for boys between 2024 and 2025. Its highest annual birth count came in 2024, with 593 births.