11B

11B may refer to :

• WASP-11b, an extrasolar planet discovered in 2008
• GCR Class 11B, a class of British 4-4-0 steam locomotive
• Ontario Highway 11B
• New Hampshire Route 11B
• New York State Route 11B
• 802.11b, an IEEE standard for wireless networking
• Boron-11 (¹¹B), an isotope of boron
• The U.S. Army Military Occupational Specialty code for an enlisted infantry soldier – phonetically pronounced "Eleven Bravo"
• U.S. Federal Rule of Civil Procedure 11(b), providing for sanctions against attorneys who bring frivolous lawsuits

• 11B-X-1371, an Internet viral video
• Stalag XI-B, a German Army POW camp near Fallingbostel
• B11 (disambiguation)