Surname Karll (Karll 
) , all over the world, is a rare cognomen. The surname Karll is habitual in Denmark, where it is a rare surname, the United States, where it is a very rare surname, and Germany. Very seldom, Karll is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karll | Germany, Denmark, Brazil, United States, India |
| agnes karll German nurse and nursing reformer, DE (b. 1868) |
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| erich karll DE (b. 1860) |
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