11A

11A may refer to:

• Freon 11A or trichlorofluoromethane
• New Hampshire Route 11A
• New York State Route 11A
• TG-11A, or Stemme S10, a German glider
• Clayton Municipal Airport (Alabama) (FAA LID: 11A)
• The anticlockwise bus service on West Midlands bus route 11
• 802.11a, an amendment to the IEEE 802.11 wireless local network specifications

See also

• Stalag XI-A, a German Army World War II prisoner-of-war camp near Altengrabow
• A11 (disambiguation)