The Vyatichs or more properly Vyatichi or Viatichi (Russian: вя́тичи) are a tribe of Early East Slavs who inhabit regions around the Oka, Moskva and Don rivers. 

The Vyatichi had for a long time no princes, but the social structure was characterized by democracy and self-government. Like various other Slavic tribes, the Vyatichi people built kurgans on territory which belongs now to the modern Russian state. The 12th-century Primary Chronicle recorded that the Vyatichi, Radimichs and Severians "had the same customs", all lived violent lifestyles, "burned their dead and preserved the ashes in urns set upon posts beside the highways", and they did not enter monogamous marriages but practiced polygamy, specifically polygyny, instead.