Meaning and history
Kelly is the Anglicized form of the Irish given name Ceallach or of the related surname Ó Ceallaigh. The surname was borne by actor and dancer Gene Kelly and by actress and princess Grace Kelly. As a given name, Kelly was mainly masculine before 1940 but became increasingly popular for girls in the 1940s and 1950s, probably influenced by Grace Kelly's 1956 marriage to Prince Rainier III of Monaco and by a female character in the 1957 television series Bachelor Father. Its popularity was declining by the end of the 1970s.
Kelly rose from #867 to #852 for girls between 2024 and 2025. Its highest annual birth count came in 1977, with 18,234 births.