Niklaas \n(i)-klaas, nik-laas\ as a boy's name is a variant of Nicholas (Greek), and the meaning of Niklaas is "people of victory".
The baby name Niklaas sounds like Niklas, Nikolaus, Nikolas, Niklos, Nicolaas and Nicklas. Other similar baby names are Klaas, Niles, Nils, Nilos, Nikos, Nikolos, Nikolay, Nikolai, Nikkolas, Niels, Nicolaus, Nicolas, Nickolaus, Nickolas and Claas.