Surname Sulmo (Sulmo 
, Sulmona 
) , all over the world, is a rare cognomen. The family name Sulmo is habitual in Italy, where it is a rare surname, France, where it is a very rare surname, and Canada. Much less frequently, Sulmo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sulmo | India, Spain, United States |
| Sulmona | Italy, Nigeria, Argentina, Canada, France |