Isiaka Abiola Adeyemi Ajimobi // ⓘ (16 December 1949 – 25 June 2020) was a Nigerian politician who served as governor of Oyo State from 2011 to 2019, he was the first person elected to the office twice.

[1] He was formerly the Managing Director/Chief Executive Officer of the National Oil and Chemical Marketing Company, a subsidiary of Shell Petroleum, Nigeria.

He left the oil sector in 2002 after 26 years of meritorious service and was elected in 2003 as a Senator of the Republic of Nigeria representing Oyo South Senatorial District on the platform of the Alliance for Democracy (AD).

After one term in the senate, he contested in 2007 for the governorship seat of Oyo state under the banner of the All Nigeria People's Party, a bid which he lost.

[3] Known as the Architect of the Modern Oyo State, Ajimobi contested for second term in an election that took place on 11 April 2015 under the All Progressives Congress for re-election and won.

On 19 June 2020, Ajimobi was admitted to First Cardiologist and Cardiovascular Consultants Hospital in Lagos after slipping into a coma following COVID-19 complications during the COVID-19 pandemic in Nigeria.