Krasnoilsk (Ukrainian: Красноїльськ; Romanian: Crasna or Crasna-Ilschi) is a rural settlement in Chernivtsi Raion, Chernivtsi Oblast, western Ukraine.

[1] Krasnoilsk is located 8 kilometres (5 mi) from the Ukrainian border with Romania and according to the 2001 Ukrainian census, the settlement had 9,122 people [1],[3] out of which almost all are ethnic Romanians.

[4] Starting in 1968, Krasnoilsk was designated an urban-type settlement.

[5] Until 18 July 2020, Krasnoilsk belonged to Storozhynets Raion.

The raion was abolished in July 2020 as part of the administrative reform of Ukraine, which reduced the number of raions of Chernivtsi Oblast to three.