Meaning and name origin
Osa \o-sa\ as a girl's name is of American origin, but is no longer that popular in the U.S..
Osa is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is the baby name popularity of the name Osa for girls. Osa reached its highest rank of #809 in the U.S. in 1880-1889. (2014 statistics).
Osa is also pronounced similarly to Asa, Assa, Asya, Aza and Isa▼. Other suggested similar baby names are Oba, Oda▼, Ola▼, Oma▼, Ora▼, Orsa and Osma. These names tend to be more commonly used than Osa.