Mykolaiv Raion (disambiguation)

Mykolaiv Raion (Ukrainian: Миколаївський район, "Mykolaiv District") may refer to:

• Mykolaiv Raion, Lviv Oblast, abolished raion in western Ukraine
• Mykolaiv Raion, Mykolaiv Oblast, southern Ukraine
• Vitovka Raion, known as Mykolaiv Raion between 1939 and 1944, southern Ukraine.