FAM or Fam can mean:
- the "Foreign Affairs Manual" of the U.S. Department of State
- File Alteration Monitor
- Fat acceptance movement
- fuzzy associative matrix
- fuzzy associative memory
- Fam Islands in Indonesia
- Free Aceh Movement in Indonesia
- Fertility Awareness Method
- Federal Air Marshal
- Federació Andorrana de Muntanyisme, Andorran mountaineering federation
- Football Association of Malaysia
- Football Association of Maldives
- Family, particularly as an abbreviation for the Family court
- Mexican Air Force - Spanish abbreviation of 'Fuerza Aérea Mexicana.'
- Filipinas, Ahora Mismo - a cultural radio magazine show in the Philippines; also a Scholarship program by the Press Association of Cadiz.
- Nickname for Anthony Famiglietti
- 6-carboxyfluorescein, or 6-FAM, a fluorescent label used in molecular biology
- fertility awareness method