Nikolayevka

Nikolayevka may refer to:
 * Amrakits or Nikolayevka, Armenia
 * Jraber or Nikolayevka, Armenia
 * Dzerjinovka or Nikolayevka, Azerbaijan
 * Nikolaevka, Bulgaria, a village in Suvorovo Municipality, Bulgaria
 * Nikolayevka, Russia, name of several inhabited localities in Russia
 * Mykolaivka, name similar in meaning of several populated places in Ukraine