The N-II or N-2 was a derivative of the American Delta rocket, produced under licence in Japan.

It replaced the N-I-rocket in Japanese use.

It used a Thor-ELT first stage, a Delta-F second stage, nine Castor SRMs, and on most flights either a Star-37E or Burner-2 upper stage, identical to the US Delta 0100 series configurations.

Eight were launched between 1981 and 1987, before it was replaced by the H-I, which featured Japanese-produced upper stages.

This rocketry article is a stub.