Surname Stillen (Stilla 
, Stille 
, Stillen 
) , in the entire world, is quite a rare cognomen. The family name Stillen is characteristic of Aland Islands, where it is quite a common surname, Germany, where it is quite a rare surname, and Slovakia. Not in comparison with a country's population, it most frequently occurs in Germany, the United States, and Italy. Much less frequently, Stillen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Stilla | India, United States, Germany, Algeria, Italy |
| Stille | United States, Sweden, Democratic Republic of the Congo, Germany, Algeria |
| Stillen | Australia, India, France, Belgium, Germany |
| Стиллен | Russia |