Kamianka-Buzka Raion (Ukrainian: Кам'янка-Бузький район) was a raion in Lviv Oblast in western Ukraine.

Its administrative center was Kamianka-Buzka.

The raion was abolished on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Lviv Oblast to seven.

[1][2] The last estimate of the raion population was 57,389 (2020 est.).

At the time of disestablishment, the raion consisted of four hromadas:[4]