Hlyboka Raion (Ukrainian: Глибоцький район, Romanian: Raionul Adâncata pronounced [raˈjonul adɨŋˈkata]) is a former administrative district of Chernivtsi Oblast located in the historical regions of Bukovina and Hertsa, in western Ukraine.

The population of the raion according to the 2001 Census was 72,682 inhabitants,[1] its area covers 686 square kilometres (265 sq mi).

According to the Ukraine Census (2001), the 72,676 residents of the raion reported themselves as following: Ukrainians: 34,025 (46.82%), Romanians: 32,923 (45.3%), Moldovans: 4,425 (6.09%), Russians: 877 (1.21%), and others: 426 (0.59%).

[5] Hlyboka raion, within its boundaries at that time, had 72,676 inhabitants in 2001, including 52.56% Ukrainian-speakers, 45.97% Romanian-speakers, and 1.15% Russian-speakers.

[9] By contrast, the number of self-identified ethnic Romanians has increased (from 29,042 to 32,923), and so has their proportion of the population of the former raion (from 42.7% to 45.3%), and the process has continued after the 2001 census.

Another locality where a significant amount of identity change from Moldovan and Moldovan-speaking to Romanian and Romanian-speaking took place was Molodiia (see the details in the article on that village).