Kuybyshevsky

Kuybyshevsky (masculine), Kuybyshevskaya (feminine), or Kuybyshevskoye (neuter) may refer to:
 * Kuybyshevsky District (disambiguation), name of several districts and city districts in the countries of the former Soviet Union
 * Kuybyshevsky (rural locality), a rural locality (a settlement) in Samara Oblast, Russia
 * Kuybyshev Oblast (Kuybyshevskaya oblast), name of Samara Oblast, Russia, in 1936–1990
 * Kuybyshev Reservoir (Kuybyshevskoye vodokhranilishche), a large artificial lake
 * Samara, formerly known as Kuybyshev