Majina ya jina la Neculai katika nchi tofauti na lugha tofauti: Cai, Caj, Claes, Claus, Col, Colin, Collin, Kai, Kaj, Kay, Klaas, Klaes, Klaos, Klas, Klaus, Kolos, Kolya, Launo, Miklavž, Miklós, Mikołaj, Mikoláš, Miksa, Mikula, Mikuláš, Mykola, Neacel, Nels, Nic, Niccolò, Nichol, Nicholas, Niĉjo, Nick, Nickolas, Nickolaus, Nicky, Nico, Nicol, Nicola, Nicolás, Nicolaas, Nicolao, Nicolaos, Nicolas, Nicolau, Nicolaus, Nicolò, Niek, Niels, Nigul, Niilo, Nik, Nika, Nikica, Niklas, Niklaus, Niko, Nikola, Nikolaas, Nikolai, Nikolaj, Nikolajs, Nikolao, Nikolaos, Nikolas, Nikolaus, Nikolay, Nikolche, Nikoloz, Nikora, Nikša, Nikusha, Nils, Nioclás. Pata Neculai kwa lugha zingine.
Majina ya jina la Mac uileagóid katika nchi tofauti na lugha tofauti: Macwilliam, Mcwilliam, Wilcox, Wilkerson, Wilkins, Wilkinson, Willems, Willemse, Willemsen, William, Williams, Williamson, Willis, Wilms, Wilson. Pata Mac uileagóid kwa lugha zingine.