AGN is a three-letter abbreviation with multiple meanings, as described below:

  • Active galactic nucleus
  • Acute Glomerulonephritis
  • General National Archive (disambiguation)
  • Angoon Seaplane Base (IATA: AGN)
  • Anderson-Goldstone-Nambu Last names of the people who helped formulate the Higgs mechanism and AGN is short for describing their theory. i.e. AGN boson
See also
  • Egin (disambiguation)