Around the world, נילס (Nils 
, Niels , נילס 
) is a common male first name. The forename נילס is habitual in Sweden, where it is a common boy's name, Greenland, where it is quite a common boy's name, and Denmark (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Germany, Sweden, and Belgium. Very seldom, נילס is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nils, Niels | Germany, Sweden, Belgium, Denmark, Netherlands |
| נילס | Israel |
| Nilès | France |
Miklavž, Miklos, Miklós, Mikola, Mikołaj, Mikuláš, Mykola, Mykoła, Niccolò, Nicholas, Nickel, Nicolaas, Nicolae, Nicolaes, Nicolas, Nicolau, Nicolay, Nicolino, Nicolo, Nicolás, Nicolò, Nicos, Niilas, Niilo, Nikolai, Nikolai, Nikolaj, Nikolaj, Nikolajs, Nikolajus, Nikolao, Nikolaos, Nikolas, Nikolass, Nikolaus, Nikolay, Nikolaz, Nikolaï, Nikos, Nikołaj, Nyikolaj, Νίκολας, Νίκος, Νικολάου, Νικόλαος, Νικόλας, Коля, Миклош, Микола, Миколай, Микулаш,
נילס is also a name for the fictitious and mythical characters: Jimmy Neutron , the animated character, Jimmy Neutron: Boy Genius; Nils Holgersson , character in The Wonderful Adventures of Nils; Abyss , the fictional character in Marvel Comics; Niels Buckingham , the main character from the danish sitcom Langt fra Las Vegas and Nils Svendsen , character in Mot i brøstet, among other works.