The Rozdilna Raion (Ukrainian: Роздільнянський район) is located in the Odessa Oblast of Ukraine. Its administrative center is the city of Rozdilna. The population of the district was 58,070 in 2014. According to the 2001 Ukrainian census the population was 78% Ukrainian, 14% Russian, 5% Moldovan, 1% Bulgarian, and 1% Belarusian.
The town of Lymans'ke and the village of Kuchurhan are located at the western edge of the district along the border with Transnistria in Moldova.