Hertsaivskyi Raion (Герцаївський район, translit.: Hertsaiivs'kyi raion; Raionul Herţa) is an administrative raion (district) in the southern part of Chernivtsi Oblast in western Ukraine, on the Romanian border. The region has an area of 308.7 km² and 32,000 inhabitants, and centers on the city of Hertsa.
Hertza region was occupied by the Soviet Union in 1940 following the signing of the Molotov-Ribbentrop Pact with Nazi Germany, and was added to the Ukrainian Soviet Socialist Republic. It was recaptured by Romania in 1941 in the course of Axis attack on the Soviet Union in the Second World War, but was recaptured again by the Soviet Army in 1944. The annexation was confirmed by the Paris Peace Treaties in 1947 between the USSR and the Communist Romania.
The fact that neither the secret protocol (appendix) of the Molotov-Ribbentrop Pact, which specified the expansionist claims of both sides, nor the June 1940 Soviet Ultimatum demanding from Romania the adjacent territory of Northern Bukovina and Bessarabia included Hertsa makes the capture by the Soviets especially controversial. Furthermore, unlike Bessarabia and Northern Bukovina, the region had not been a part of Imperial Russia or Austria-Hungary before World War I, but had been a part of Romania and one of its predecessor states, Moldavia, before that.
In 1962, the region was merged into the Hlybotskyi Raion, and in 1991, was reinstated again.
In 1930, the region had a population of 30,082, of which 27,919 (92.8%) Romanians, 1,931 (6.4%) Jews and 232 (0.8%) people of other ethnicities.
Hertsaivskyi Raion is composed of 1 city and 13 incorporated localities, containing a total of 24 villages (Romanian names listed in brackets):
The 11 unincorporated villages are: