Rio
Rio is a reductive ranchero place-name with an attractive Tex-Mex lilt. No Doubt’s Tom Dumont has a son named Rio Atticus.
Also a South American place name, and associated with the Rio Grande, it’s been used as a swaggering cowboy name in films spanning from a William S. Hart character in 1915 to Marlon Brando’s in One-Eyed Jacks. It is occasionally used for a girl, as in the catchy Duran Duran song.
Rio
Sexy male name that might make an interesting middle name for a girl.

