Domanivka Raion (Ukrainian: Доманівський район) was a subdivision of Mykolaiv Oblast of Ukraine.

)[1] In the 1920s, the current area of the district belonged to Odessa Governorate.

In 1923, uyezds in Ukrainian Soviet Socialist Republic were abolished, and the governorates were divided into okruhas.

In 1925, the governorates were abolished, and okruhas were directly subordinated to Ukrainian SSR.

In February 1954, Domanivka Raion was transferred to Mykolaiv Oblast.