Casing may refer to:

• Casing (ammunition), a shell enclosing the explosive propellant in ammunition
• Casing (sausage), a thin covering holding the food contents of sausage
• Casing (borehole), a metal tube used during the drilling of a well
• Casing (submarine), a platform attached to the upper side of a submersible vehicle
• Casing (moulding), Molding (decorative) surrounding door or window openings
• Casing stone, a smooth stone covering for a structure such as those on the Giza pyramid complex

See also

• Case
• Casting (disambiguation)