Isobo Jack is a Riverian businessman and politician of the All Progressives Congress who was the caretaker chairman of Akuku-Toru from December 2007 to April 2008. He is a member of the Kalabari tribe. Jack served as chairman of the Rivers State Environmental Sanitation Authority in 2011 and 2012,[1] and has also held the position of the Rivers State Commissioner of Urban Development.[2]