John Joseph McDonough (August 3, 1849 – November 26, 1926) was a politician and businessman from Georgia, United States.
McDonough was born in 1849 in Augusta, Georgia,[1] the son of an Irish-born immigrant.
He received his education in Atlanta's public schools and graduated from the St. Francis Xavier College in New York City.
He followed his father's footsteps and made a career in the lumber industry, as well as in machinery and foundry.
He was elected Mayor of Savannah in 1891 over incumbent John Schwarz and won re-election in 1893.