William Wallace Chalmers (born November 1, 1861) was a Republican member of the United States House of Representatives from Ohio. He represented Ohio’s 9th congressional district and is recorded as having served four terms in Congress. His tenure in the House began on April 11, 1921, and concluded on March 3, 1931, marking a decade of service at the federal level.

During this period, Chalmers served as a Representative for Ohio, identified in historical records as a former officeholder. While specific committee assignments, legislative initiatives, or additional offices are not listed in the available metadata, his continuous service across four terms indicates sustained electoral support within the 9th district. William Wallace Chalmers is recognized today as a historical member of Congress from Ohio, active in national politics during the 1920s.