Last name Deoan (Deoan 
) , all around the world, is a rare cognomen. The family name Deoan is characteristic of Bangladesh, where it is a very rare surname, Malaysia, where it is an extremely rare surname, and India. Much less frequently, Deoan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deoan | Bangladesh, United States, Malaysia, Philippines, India |