J20

J20 or J-20 may refer to:

Aircraft

 * Chengdu J-20, a Chinese stealth fighter
 * Reggiane J 20, an Italian fighter in service with the Swedish Air Force
 * Soko J-20 Kraguj, a Yugoslavian light attack aircraft

Automobiles

 * Jeep J20, an American pickup truck
 * Toyota Land Cruiser (J20), a Japanese off-road vehicle

Locomotives

 * LNER Class J20, a British steam locomotive class

Ships

 * HSWMS Östergötland, an Östergötland-class destroyer of the Swedish Navy
 * INS Nirupak, a Sandhayak-class survey ship of the Indian Navy

Other uses

 * J20 Nationell, a Swedish junior hockey league
 * Acute bronchitis
 * County Route J20 (California)
 * DisruptJ20, founded to protest the inauguration of Donald Trump in January 2017
 * Elongated pentagonal cupola, a Johnson solid (J20)
 * January 20, 2005 counter-inaugural protest, held in Washington, D.C. and other American cities
 * Nissan J20, an automobile engine