Mykolaivka (Ukrainian: Микола́ївка) is a village in the Voznesensk Raion of Mykolaiv Oblast, in Ukraine.

[1] As of 1886, 442 people lived in the former proprietary village of the Trikrat Volost, there were 70 yards, and there was an inn.

[2] On 12 June 2020, in the course of decentralization, the Mykolaiv Village Council was merged with the Bratsk settlement community.

On 17 July 2020, as a result of the administrative-territorial reform and liquidation of Bratsky District, the village became part of Voznesensk Raion.

[4] According to the 2001 Ukrainian Census, 500 people lived in the village,[5] and their native language was distributed as such:[6]