Surname Odonovan (Odonovan 
) , all around the world, is quite a rare cognomen. The surname Odonovan is habitual in Ireland, where it is quite a common surname, the United Kingdom, where it is a rare surname, and New Zealand. Measured by absolute frequency, it most frequently occurs in the United States, Ireland, and the United Kingdom. Very seldom, Odonovan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Odonovan | Canada, United Kingdom, United States, Ireland, Australia |