Onna is a Local Government Area in Akwa Ibom State, Nigeria.
Onna may also refer to: Onna (L'Aquila), a town in Abruzzo, Italy Onna, Okinawa, Japan Onna, Hampshire, England, UK
People with the given name Onna White (1922–2005), Canadian choreographer and dancer
See also Ona (disambiguation) Onna-musha, a type of female warrior belonging to the Japanese upper class