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

• Mykolaivka, Donetsk Oblast, a city in Donetsk Oblast

• 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

• Mykolaivka, Soledar urban hromada, Bakhmut 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, 15km east of the Dnipro river
• Mykolaivka, Mykolaiv Oblast, a village in Mykolaiv Oblast
• Mykolaivka, Vinnytsia Oblast, a village in Vinnytsia Oblast, 50km north of Vinnytsia

• Mykolaivka Druha, Odesa Oblast
• Stara Mykolaivka, Kostiantynivka Raion, a Ukrainian toponym

• Mykolaiv (disambiguation)

This article includes a list of related items that share the same name (or similar names).
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