Family name สมสมาน (Heal 
, สมสมาน 
, Somsaman ) , all over the world, is quite a rare last name. The last name สมสมาน is habitual in the United Kingdom, where it is quite a rare surname, New Zealand, and Australia. Measured by absolute frequency, it is commonest in the United Kingdom, the United States, and Australia. Very seldom, สมสมาน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Heal | Australia, Canada, New Zealand, United Kingdom, United States |
| สมสมาน, Somsaman | Thailand |