Som, SOM or Søm may refer to:

• Somalia, the country whose ISO 3166 three-letter code and IOC Olympic country code is "SOM"
• State of Michigan, the 26th State of the United States
• Som, Uttar Pradesh, a town in India
• Søm, a borough in Kristiansand, Norway
• SOM Center Road, one designation of Ohio State Route 91
• Somerset Railroad (New York), a rail carrier whose reporting mark is "SOM"

Søm is a district in Kristiansand, Norway with a population of 9,500 (2013). It is the third largest district and is a part of the Oddernes borough. Søm has borders with Hånes to the North, Randesund to the South, Lillesand to the East and has the ocean to the West. Søm is the second richest district in Kristiansand after Lund.