Vesela Dolyna (Ukrainian: Весела Долина, Romanian: Cleaștița or Cleaștiț, German: Klöstitz) is a village in Bolhrad Raion, Odesa Oblast (province) of Ukraine.

It belongs to Budzhak settlement hromada, one of the hromadas of Ukraine.

[1] Until 18 July 2020, Vesela Dolyna was located in Tarutyne Raion.

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

[2][3] According to the 2001 census, the majority of the population of the commune was Russian speaking (87.56%), with Ukrainian (6.38%), Bulgarian (3.23%) and Romanian (2.57%) speaking in the minority.