Country | Day | Month | Names |
![]() | 6 | December | Nikola, Nikolai, Nina, Kolyo, Nenka, Niko, Nikolay, Nikolina, Nitza |
![]() | 6 | December | Nigulas, Nigul, Nikolai, Niilas, Niilo, Nils, Klaus, Laas, Laus |
![]() | 6 | December | Niilo, Niko, Niki, Nikolas, Niklas, Nikolai, Niila |
![]() | 6 | December | Nikolai, Nils |