263 was a year.
263 may also refer to:
Dates and numbers 263 (number) 263 BC
Military No. 263 Squadron RAF VMM-263, United States Marine Corps Marine Medium Tiltrotor Squadron HMM-263, former name of VMM-263 Messerschmitt Me 263, World War II fighter aircraft USS Benton County (LST-263), a tank landing ship from World War II USS Laub (DD-263), destroyer from World War II, later the Royal Navy's HMS Burwell HMCS Yukon (DDE 263), Canadian destroyer
Highways United States Alabama State Route 263 California State Route 263 Florida State Road 263 New York State Route 263 Pennsylvania Route 263 Virginia State Route 263
Canada Quebec Route 263 Saskatchewan Highway 263
Miscellaneous 263 Dresda, main belt asteroid H.263, video codec