Mum or MUM may refer to:

• múm, an Icelandic musical group
• "Mum", a song by Luke Hemmings from When Facing The Things We Turn Away From
• Mum Jokmok, a Thai comedian
• Mum (TV series), a UK sitcom that aired on BBC Two from 2017 to 2019
• Mum (film)
• "Mum" (On the Up), a sitcom episode
• M-U-M (Magic-Unity-Might) magazine

• Multifocal plane microscopy
• Maximal unique match

• Monash University, Malaysia campus
• Maharishi University of Management, in the United States
• Muslim University of Morogoro in Tanzania

• Mother, or mum in colloquial British and Commonwealth English
• Chrysanthemum, or mum, a plant
• Bamum kingdom or Mum, Cameroon
• Mum, Burma, a village in Burma
• Mum language, a language spoken in Papua New Guinea
• Mum (deodorant)
• Brunswick Mum, a beer
• Chhatrapati Shivaji International Airport, Mumbai (IATA code: MUM)

• Mums (disambiguation)
• Mumm, a French champagne producer
• Mom (disambiguation)
• Mummy (disambiguation)