List of governors of Osun State

Governor of Osun State
Flag of Osun State
Incumbent Ademola Adeleke since 27 November 2022
Executive Branch of the Osun State Government
Style	Governor (informal) His Excellency (courtesy)
Type	Head of state Head of government
Member of	Osun State Executive Branch Osun State Cabinet
Residence	Osun State Government House
Seat	Osogbo
Appointer	Direct popular election or via succession from deputy governorship
Term length	Four years renewable once
Constituting instrument	Constitution of Nigeria
Inaugural holder	Leo Segun Ajiborisha
Formation	27 August 1991 (33 years ago) (1991-08-27)
Deputy	Deputy Governor of Osun State
Website	www.osunstate.gov.ng

The governor of Osun State is the head of government of Osun State in Nigeria. The governor is the head of the executive branch of the Osun State Government. The governor has a duty to enforce state laws and the power to either approve or veto bills passed by the Osun State House of Assembly, to convene the legislature and grant pardons.

When Osun State was created from Oyo State in 1991, Colonel Leo Segun Ajiborisha was appointed its first governor. Rauf Aregbesola served the longest term as governor, serving for two consecutive terms of 4 years from 2010 to 2018.^[1]

Since the creation of the state in 1991, 10 people have served as governor, 4 military governors and 6 civilian governors. Ajiborisha served the shortest term in office of 4 months.

The current governor is Ademola Adeleke, he was sworn in on 27 November 2022.^[2]

Osun State was created on 27 August 1991 and General Ibrahim Babangida appointed Leo Segun Ajiborisha as military governor.

Governor			Term of office			Party	Ref.
No.	Portrait	Name (birth–death)	Took office	Left office	Time in office
1		Colonel Leo Segun Ajiborisha	27 August 1991	3 January 1992	4 months	Military

Under the 1979 Constitution, the second constitution of the Federal Republic of Nigeria, the governor was both head of state and government. The governor was elected for a four-year term. In the event of a vacancy the deputy governor would have served as acting governor.

Governor			Term of office			Political party	Elected	Ref.
No.	Portrait	Name (birth–death)	Took office	Left office	Time in office
2		Isiaka Adeleke (1955–2017)	3 January 1992	17 November 1993	1 year, 318 days	Social Democratic Party	1991

General Sani Abacha led the palace coup d'ètat of 1993 which overthrew the Third Republic. He appointed his military administrators in December 1993.

Administrator			Term of office			Party	Ref.
No.	Portrait	Name (birth–death)	Took office	Left office	Time in office
3		Navy Captain Anthony Udofia	9 December 1993	22 August 1996	2 years, 8 months	Military
4		Lieutenant Colonel Anthony Obi (1952–2022)	22 August 1996	7 August 1998	1 year, 11 months
5		Colonel Theophilus Bamigboye (born 1951)	7 August 1998	29 May 1999	9 months

Under the 1999 Constitution of the Federal Republic of Nigeria, the governor is both head of state and government. The governor is elected for a four-year term. In the event of a vacancy, the deputy governor would serve as acting governor.

Governor			Term of office			Political party	Elected	Ref.
No.	Portrait	Name (birth–death)	Took office	Left office	Time in office
6		Chief Adebisi Akande (born 1939)	29 May 1999	29 May 2003	4 years	Alliance for Democracy	1999
7		Olagunsoye Oyinlola (born 1951)	29 May 2003	26 November 2010	7 years, 181 days	Peoples Democratic Party	2003 2007
8		Rauf Aregbesola (born 1957)	27 November 2010	27 November 2018	8 years	All Progressives Congress	2014
9		Gboyega Oyetola (born 1954)	27 November 2018	27 November 2022	4 years	All Progressives Congress	2018
10		Ademola Adeleke (born 1960)	27 November 2022	Incumbent	2 years, 28 days	Peoples Democratic Party	2022

• States of Nigeria
• List of state governors of Nigeria

• "Nigerian Federal States". WorldStatesmen. Retrieved 30 November 2009.