- A language spoken by the Selk'nam people in Isla Grande de Tierra del Fuego in southernmost South America.
Ona (plural Onas)
- A surname from Spanish.
- According to the 2010 United States Census, Ona is the 37993rd most common surname in the United States, belonging to 584 individuals. Ona is most common among Asian/Pacific Islander (51.88%), Hispanic/Latino (28.77%) and White (10.27%) individuals.
- Hanks, Patrick, editor (2003), “Ona”, in Dictionary of American Family Names, volume 3, New York City: Oxford University Press, →ISBN.
declension of Ona
- a surname.
According to data collected by Forebears in 2014, Ona is the 941st most common surname in the Philippines, occurring in 10,053 individuals.