William John Wallace (1814–1894) was an Irish-American politician.
He was the seventh mayor of the city of Indianapolis, Indiana, and the first Republican to hold that office.
William J. Wallace was born in County Donegal, Ireland in March 1814.
[1] He won a special election in 1856 following the death of mayor Henry F. West and the short interim of Charles G. Coulon.
He died at his home in Indianapolis on January 9, 1894.