Mikhaēl III may refer to:

• Michael III (840–867), Byzantine Emperor
• Michael III of Anchialus, Patriarch of Constantinople in 1170–1177

• Mayu Shinjo
• Mayu Shinjō
• Mayu Tsuruta
• Mayuzumi Toshiro
• Mayuzumi Toshirō
• Mayville, Dodge County, Wisconsin
• Mayville High School
• Mayville, Minnesota
• Mayville (NY)
• Mayville State College
• May vs Drew! Rivals Forever
• Maywand District
• May Watts
• May we all shine on
• Mayweather
• May West
• May-wine
• May Wong
• Maywood Academy High School
• Maywood Avenue School
• Maywood, (Band)
• Maywood Beach
• Maywood (duo)
• Maywood Middle School
• Maywood, Missouri