John Olumba (born July 12, 1981) is an American attorney, politician and Democrat who served two terms as a member of the Michigan State House of Representatives. He represented the 3rd house district located in Wayne County, which comprises the north central and eastern portions of Detroit. After serving on the House Judiciary, Commerce, Economic Development and Trade, Insurance, and Criminal Justice committees, Olumba served on the House Appropriations Committee as the chairman of Fiscal Oversight, and as a member on Community Health, and Corrections.