Clement Isong, Nigerian banker and politician, Governor of Cross River State (died 2000)

Clement Nyong Isong ; 20 April 1920 – 29 May 2000) was a Nigerian banker and politician who was governor of the Central Bank of Nigeria from 1967 to 1975 during the military regime of General Yakubu Gowon. He was later elected governor of Cross River State (1979–1983) in the Nigerian Second Republic.

Cross River State, located in the South South geopolitical zone of Nigeria, has undergone political changes influenced by colonial rule, military regimes, and democratic transitions. The territory, which was originally under the Eastern Region, was incorporated into the newly created South-Eastern State in 1967 following the dissolution of the regional structure by the military government. In 1967, military leader Yakubu Gowon established South-Eastern State from the Eastern Region as part of a broader state creation effort during the Nigerian Civil War. The state remained under military governance until 1979, when Nigeria transitioned briefly to civilian rule. In 1976, South-Eastern State was renamed Cross River State during the nationwide state reorganisation carried out by the Murtala Mohammed administration.