Mykolaivka () is a village located in Bakhmut Raion of Donetsk Oblast, eastern Ukraine. Administratively, it is part of Svitlodarsk urban hromada, one of the hromadas of Ukraine.
On 11 September 2022, during the Russian invasion of Ukraine, Russian Wagner forces captured two wounded Ukrainian soldiers of the Aidar Battalion near the village and summarily executed one of them.