Ordnance

Ordnance may refer to:

• Military:
  • Weapons and ammunition
  • Military logistics, especially provision of weapons and ammunition
  • ordnance weapon, a personal weapon issued to a member of a military unit
  • Aircraft ordnance, weapons carried by and used by an aircraft
  • Artillery, often in the formal name e.g. as in Ordnance Survey
  • Artillery shells, specifically unexploded ordnance
• Ordnance Datum, (from use in ballistics) a vertical datum used as the basis for deriving altitudes on maps
• Ordnance, Oregon, a former community near the Umatilla Chemical Depot