Mykolaivka () is one of the most common toponyms (place names) in Ukraine. The name is a diminutive derivative of Mykolaiv.

City Mykolaivka, Donetsk Oblast, a city in Donetsk Oblast

Urban-type settlements Mykolaivka, Simferopol Raion, an urban-type settlement in Simferopol Raion, Crimea Mykolaivka, Obukhivka settlement hromada, Dnipro Raion, Dnipropetrovsk Oblast, an urban-type settlement in Dnipro Raion, Dnipropetrovsk Oblast Mykolaivka, Karpivka rural hromada, Kryvyi Rih Raion, Dnipropetrovsk Oblast, a rural locality in Kryvyi Rih Raion, Dnipropetrovsk Oblast Mykolaivka, Donetsk Raion, Donetsk Oblast, an urban-type settlement in Donetsk Oblast Mykolaivka, Odesa Oblast, an urban-type settlement in Odesa Oblast, formerly Mykolaivka Druha Mykolaivka, Sumy Raion, Sumy Oblast, an urban-type settlement in Sumy Oblast, formerly Zhovtneve The former name of Novovorontsovka

Villages Mykolaivka, Soledar urban hromada, Bakhmut Raion, Donetsk Oblast Mykolaivka, Svitlodarsk urban hromada, Bakhmut Raion, Donetsk Oblast Mykolaivka, Novohrodivka urban hromada, Pokrovsk Raion, Donetsk Oblast Mykolaivka, Luhansk Oblast Mykolaivka, Kharkiv Raion, Kharkiv Oblast, a village in Kharkiv Oblast, formerly Melyhivka Mykolaivka, Beryslav Raion, Kherson Oblast, a village in Kherson Oblast, on the north bank of the Dnipro river Mykolaivka, Kherson Raion, Kherson Oblast, a village in Kherson Oblast, 15 km east of the Dnipro river , a village in Kyiv Oblast , a village in Kyiv Oblast Mykolaivka, Mykolaiv Oblast, a village in Mykolaiv Oblast Mykolaivka, Vinnytsia Oblast, a village in Vinnytsia Oblast, 50 km north of Vinnytsia

Combined derivatives

Mykolaivka Druha, Odesa Oblast

Stara Mykolaivka, Kostiantynivka Raion, a Ukrainian toponym

See also Mykolaiv (disambiguation)