Francis Xavier Desnoyers (July 29, 1813 – August 13, 1868) was an American merchant, politician, and Wisconsin pioneer.
Desnoyers was born on July 29, 1813, in Detroit, Michigan Territory,[1] the son of Peter J. Desnoyers and his wife Marie.
He married Louisa A. Baird of Philadelphia, Pennsylvania, and had three children.
Their son, Frank, would also become mayor of Green Bay.
Francis X. Desnoyers died on August 13, 1868, aged 55.