Family name Нилс (Nils 
, Niles 
, Niels ) , throughout the world, is a common last name. The cognomen Нилс is habitual in Latin America and the Caribbean, particularly Barbados, where it is a common surname, Grenada, where it is quite a common surname, and Saint Lucia (explore the name in all countries). Not in comparison with a country's population, it is commonest in the United States, India, and Sri Lanka. More frequently, Нилс is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Niels, Nils | Denmark, Germany, Sweden, United States, India |
| Niles | Germany, United States, India, Netherlands, Sri Lanka |
| Нилс | Kazakhstan, Russia |
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, Мыкола, Мікалай, Міклаш, Мікола, Никель, Никколо, Никола, Николае, Николаев, Николаз, Николай, Николайс, Николаос, Николас, Николау, Николаус, Николаэ, Николо, Николя, Никос, Нильс, Нікалас, Нікало, Ніколай, Ніколас, Нільс, נילס, ניקולאו, ניקולאי, ניקולס, نيقولا, نيقولاي, نيكوس, نيكولاس, نيكولاي, نيلز, نيلس, ნიკოლასი, ニコラ, ニコライ, ニコラウス, ニコラス, ニルス, 尼克斯, 尼古拉, 尼古拉斯, 尼古拉耶夫, 尼尔斯, and 니콜라