Zabaykalsky (ru|Забайка́льский; masculine), Zabaykalskaya (Russian: Забайка́льская; feminine), or Zabaykalskoye (Russian: Забайка́льское; neuter) is the name of several rural localities in Russia.
Zabaykalsky, Republic of Buryatia, former settlement under the administrative jurisdiction of Oktyabrsky City District of the city of republic significance of Ulan-Ude, Republic of Buryatia; merged into Ulan-Ude in February 2010