William Joseph Montgomery, also known as W. J. Montgomery was an American politician, lawyer and a bank president. He was mayor of the city of Marion, South Carolina in 1891, and he served in the South Carolina House of Representatives, and in the South Carolina Senate (1909–1912).
- Occupation
- lawyer, politician, mayor, banker
- Citizenship
- United States
- Born
- May 20, 1851
- Died
- March 18, 1913