Biliaivka Raion (Ukrainian: Біляївський район) was a raion (district) in Odesa Oblast of Ukraine.

The raion was abolished and its territory was merged into Odesa Raion on 18 July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Odesa Oblast to seven.

[1][2] According to the 2001 census, the majority of the population of Bileaiivka district was Ukrainian -speaking (80.26%), with Russian (16.87%) and Romanian (1.26%) speakers in the minority.

On 28 January 2016, Biliaivka was designated the city of oblast significance, though it remained the center of the raion.

[5] At the time of disestablishment, the raion consisted of seven hromadas:[6]