• Fob pocket, a small pocket in trousers or waistcoats originally intended to hold a pocket watch
• Key fob, a medallion used to identify a key ring, or position on the ring
• "Fob" is thus sometimes used for various small electronic security token devices
• Watch fob, a medallion or ornament attached to a pocket watch to assist in handling

FOB or F.O.B. as an acronym can also mean:

• Fall Out Boy
• Fecal occult blood, blood present in the feces that is not visibly apparent
• "Federal Office Building"", any office building owned or occupied by the US Government
• Fetal osteoblast progenitor cell
• Follow-on biologics, a term used to describe generic biologics
• Forward Operating Base, any secured forward position that is used to support tactical operations
• Fractional Orbital Bombardment, a method of nuclear weapons delivery
• Free On Board or Freight On Board, terms used in commercial shipping
• Fresh off the boat, a slang phrase for people of foreign nationality
• Fuel On Board, Airbus aircraft instrument indication of gross fuel loaded (typically EICAS monitor)
• FOB (play), a 1981 David Henry Hwang play that takes its title from the Airbus phrase

See also

• Fop, the male fashion that preceded the dandy