J30

J30 may refer to:

Vehicles

 * Automobiles
 * Honda J30, an automobile engine
 * Infiniti J30, a Japanese luxury car
 * Nissan J30, a Japanese sedan
 * Toyota Land Cruiser (J30), a Japanese off-road vehicle


 * Boats
 * J/30, keelboat


 * Locomotives
 * GSR Class J30, an Irish steam locomotive

Other uses

 * Pentagonal orthobicupola, a Johnson solid (J30)
 * Rhinitis
 * Westinghouse J30, a turbojet engine
 * J30 index, a stock index tracking the Tokyo Stock Exchange