Colwin, Calan, Cailin, Collen, Colwyn, Cullin, Galin, Glin, Kalin
Collin, Nils, Nicolao, Nicolás, Mikolás, Nikola, Neacel, Nicol, Nikolai, Nicolae, Nicolau, Mikolaj, Nicolò, Nico, Nicola, Niccolò, Miklós, Klaas, Klaus, Niklaus, Claus, Nickolaus, Nikolaus, Klaes, Nicolas, Niilo, Niko, Launo, Nikolao, Nichjo, Nikolas