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 | Algeria, Morocco, Iraq, Libya, Saudi Arabia |
| Cotter | Belgium, United Kingdom, Ireland, Australia, United States |
| Kotter | United Kingdom, Canada, Germany, United States, Switzerland |
| Cauter | Belgium, United Kingdom, Australia, Germany, United States |