The Battle of Alta River is a 1068 clash on the Alta River betweena Cuman army on the one hand and Kievan Rus' forces of Grand Prince Iziaslav I of Kiev, Prince Sviatoslav of Chernigov, and Prince Vsevolod of Periaslavl on the other in which the Rus' forces are routed and flee back to Kiev and Chernigov in some disarray.

The battle leads to an uprising in Kiev that briefly deposes Grand Prince Iziaslav.

That incident supposedly shows the power of the Kiev veche and how the gathering of common people influences princely politics in Kievan Rus' (particularly in Kiev as well as Great Novgorod.)