| Jack Nyanungo Ranguma | |
| Office: | 1st Governor of Kisumu County |
| Term Start: | 27 March 2013 |
| Term End: | 2017 |
| Deputy: | Ruth Adhiambo Odinga |
| Constituency: | Kisumu County |
| Birth Date: | 20 October 1954 |
| Birth Place: | Kano, Kenya |
| Nationality: | Kenyan |
| Party: | ODM |
| Spouse: | Olivia Ranguma (m. 1980) |
| Children: | Eugene Ranguma (deceased); Sonya Ranguma (deceased); Tanya Ranguma |
| Profession: | Accountant |
Jack Nyanungo Ranguma, also known as JR, is a Kenyan politician and was the first Governor of Kisumu County, Kenya. He was elected on 6 March 2013.[1]
Jack Ranguma has a Master of Science (International Accounting and Management Information Systems) from the University of Illinois at Urbana-Champaign.
Prior to entering politics Jack Ranguma had worked as an accountant for close to 30 years. In 1979, Jack Ranguma was appointed Audit Manager in charge of a large quasi-government audit portfolio by BDO International. He was promoted to Partner in charge of audit services in 1989, and served as Partner and Head of Financial and Management Consultancy Services between 1991-2001. In 2002 he was appointed Commissioner of Income Tax, and later Commissioner of Domestic Taxes, Kenya Revenue Authority. In 2008 he became Senior Policy Advisor for Tax Justice Network Africa, a pan-African organization.