FMN

FMN may refer to:

• Federated Mission Networking
• Facial motor nucleus
• Flavin mononucleotide
• Flour Mills of Nigeria, a Nigerian agribusiness company
• FMN (TV channel), Indonesia
• Formins
• The FAA LID/IATA code for Four Corners Regional Airport in Farmington, New Mexico, United States
• Ministry of Defence (Denmark) (Danish: {{lang|da|Forsvarsministeriet}})
• Narrowband FM, or frequency modulation narrow

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