Mykolaivka
- Administrative divisions of Dnipropetrovsk Oblast
- Administrative divisions of Donetsk Oblast
- List of Ukrainian toponyms that were changed as part of decommunization in 2016
- List of urban-type settlements in Ukraine by subdivision
- Mykolaiv (disambiguation)
- Mykolaivka Druha
- Mykolaivka, Bilopillia Raion, Sumy Oblast
- Mykolaivka, Donetsk Oblast
- Mykolaivka, Khartsyzk
- Mykolaivka, Nova Vodolaha Raion, Kharkiv Oblast
- Mykolaivka, Odessa Oblast
- Mykolaivka, Petrykivka Raion, Dnipropetrovsk Oblast
- Mykolaivka, Shyroke Raion, Dnipropetrovsk Oblast
- Mykolaivka, Simferopol Raion
- Mykolaivka, Sumy Oblast
- Stara Mykolaivka, Kostiantynivka Raion
- Ukraine
