2J

2J or 2-J may refer to:


 * 2J, International Air Transport Association code for Air Burkina
 * Chaparral 2J, a model of Chaparral Cars
 * 2J, an abbreviation for Second Epistle of John
 * Kawasaki P-2J, Japanese derivative of the Lockheed P-2 Neptune, an American military aircraft
 * HQ-2J, a Chinese military missile
 * Thor DSV-2J, see Thor DSV-2
 * ISS 2J/A, alternate designator for Space Shuttle mission no. STS-127
 * SSH 2J (WA), see Washington State Route 527
 * Thompson School District R2-J