Isiaka Adetunji Adeleke (15 January 1955 – 23 April 2017) was a Nigerian politician. He was a two time senator who represented the People's Democratic Party (PDP) in Osun State from 2007 to 2011 and was elected again under the banner of the All Progressives Congress in 2015. He became a member of the Nigerian Senate in 2007. He ran for reelection in April 2011 on the PDP platform, coming second with 77,090 votes. The winner was Mudasiru Oyetunde Hussein of the Action Congress of Nigeria (ACN) with 121,971 votes.
- "Sen. Isiaka Adetunji Adeleke". National Assembly of Nigeria. Archived from the original on November 23, 2009. Retrieved 2009-09-20.
- "Official result of OSUN Senatorial Elections". The Punch. Apr 10, 2011. Retrieved 2011-05-05.
- http://saharareporters.com/2017/04/23/senator-isiaka-adeleke-dead. Missing or empty