Across the world, 尼尔斯 (Nils 
, Niels , 尼尔斯 
) is a common boy's first name. The first name 尼尔斯 is habitual in Sweden, where it is a common masculine 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 commonest in Germany, Sweden, and Belgium. Much less frequently, 尼尔斯 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nils, Niels | Sweden, Germany, Denmark, Netherlands, Belgium |
| 尼尔斯 | China |
| Nears | Canada, United Kingdom, United States, New Zealand, Australia |
Miklavž, Miklos, Miklós, Mikola, Mikołaj, Mikuláš, Mykola, Mykoła, Neils, Niccolò, Nicholas, Nickel, Nicolaas, Nicolae, Nicolaes, Nicolas, Nicolau, Nicolay, Nicolino, Nicolo, Nicolás, Nicolò, Nicos, Niers, Nierth, Niilo, Nikolai, Nikolai, Nikolaj, Nikolaj, Nikolajs, Nikolajus, Nikolao, Nikolaos, Nikolas, Nikolass, Nikolaus, Nikolay, Nikolaz, Nikolaï, Nikos, Nikołaj, Niles, Nilesi, Nileth, Nills, Nilsi, Nilth, Nirs, Nirsi, Nirth,
尼尔斯 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.