Ike Omar Sanda Nwachukwu mni ((Listenⓘ); born 1 September 1940)[1] is a retired Nigerian Army major general and politician who served twice as Foreign Minister of Nigeria during the military regime of General Ibrahim Babangida, and as a Senator for Abia North from 1999 to 2003.

He also studied at the Institute of Humanitarian Law, San Remo, Italy, the United Nations Peace Academy, and the National Institute for Policy and Strategic Studies (NIPPS), Kuru, Plateau State.

Ike Nwachukwu rose to the rank of major general prior to his retirement with the Nigerian Army.

In September 1990 he was re-appointed Minister of Foreign Affairs, being replaced in January 1993 by Matthew Mbu during the transition to civilian rule.

Nwachukwu participated in the 2003 Nigerian presidential election, for the National Democratic Party; he won 0.34% of the vote.