J36 may refer to:
Allis-Chalmers J36, an American version of the de Havilland Goblin jet engine County Route J36 (California) Chengdu J-36, a Chinese fighter jet Elongated triangular gyrobicupola, a Johnson solid (J36) , a Bangor-class minesweeper of the Royal Navy LNER Class J36, a British steam locomotive class Peritonsillar abscess