J16

J16 may refer to:

Roads

 * County Route J16 (California)
 * Malaysia Federal Route J16

Vehicles

 * GSR Class J16, an Irish steam locomotive
 * INS Jamuna, a Sandhayak-class survey ship of the Indian Navy
 * LNER Class J16, a British steam locomotive class
 * Shenyang J-16, a Chinese strike fighter aircraft

Other uses

 * Elongated pentagonal bipyramid, a Johnson solid (J16)
 * Pneumonia
 * J16, an orca, mother of Scarlet