Last name ศีลธรรม (Moral 
, ศีลธรรม 
, Moralia 
) , across the world, is a common cognomen. The last name ศีลธรรม is habitual in Spain, where it is quite a common surname, Philippines, and Paraguay (explore the name in all countries). Not in comparison with a country's population, it is commonest in India, Philippines, and Spain. Very seldom, ศีลธรรม is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Moral | Philippines, Spain, India, Bangladesh, Turkey |
| ศีลธรรม | Thailand |
| Moralia | Philippines, Mexico, Spain, Brazil, United States |
| Morach | Spain, Argentina, India, United States, Switzerland |