What does Rio mean?
Rio \rio\ as a boys' name is pronounced REE-oh. It is of Spanish origin, and the meaning of Rio is "river". Place name; independent name and short form of names ending with -rio. Rio de Janiero, Brazil, which means "January river" in Portuguese. The Rio Grande is the boundary river between Texas and Mexico, and its name means "big river" in Spanish.
Rio has 1 variant: Reo.
Rio is an uncommon given name for men but a very popular surname for all people (#17719 out of 150436, Top 12%). (2000 U.S. Census)
Charted below is the birth name popularity of Rio for boys. Rio has yet to be listed in the list thus far. (Top 1000 Baby Names Records, 2014)
Rio is alike in pronunciation to Rae, Rai, Ray▼, Rei, Rey, Roe, Roi, Row, Roy▼, Ruy, Rye and Ryu. Other suggested similar baby names are Pio, Ric, Rico▼, Rik, Rion, Rip and Rito. These names tend to be more frequently used than Rio.