Cognomen كوتر (كوتر 
, Cotter 
, Kotter 
) , globally, is a common surname. The family name كوتر is characteristic of Ireland, where it is quite a common surname, Saint Lucia, and Belgium. Not in comparison with a country's population, it most frequently occurs in the United States, Ireland, and the United Kingdom. Much less frequently, كوتر is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| كوتر | Libya, Saudi Arabia, Algeria, Iraq, Morocco |
| Cotter | Australia, United Kingdom, Ireland, United States, Belgium |
| Kotter | Switzerland, United Kingdom, Canada, United States, Germany |
| Cauter | Australia, United Kingdom, United States, Belgium, Germany |