Pervomaysky (Russian: Первома́йский; masculine), Pervomayskaya (Первома́йская; feminine), or Pervomayskoye (Первома́йское; neuter) is the name of several inhabited localities in Russia. The names are the adjectives derived from "Пе́рвое Ма́я" (Pervoye Maya), Russian for May 1 (the International Workers' Day).