Nicolas or Nicolás may refer to masculine given names cognate to English Nicholas.

The given name Nicolas is widely used in Brazil (Portuguese pronunciation: [niˈkɔlas]) and France (French pronunciation: [nikɔla]).

The variant Nicolás (Spanish pronunciation: [nikoˈlas]) is widely used in Spanish-speaking countries.

The variant Niccolò (Italian pronunciation: [nikkoˈlɔ]), is a popular male name in Italy, although Nicolas is also sometimes used, especially amongst Italian Americans and Latin Americans of Italian descent.

(Spanish variant)