Fug can refer to:

  • FUG, a Hungarian armoured scout car
  • Fug, a minced oath used by Norman Mailer in The Naked and the Dead
  • The Fugs, a band who took their name from Mailer's minced oath
  • Funkgerät (prefix: FuG), generic German WWII term for radio and airborne IFF, RDF and airborne and some ground based Radar equipment.