William Price Elmer (born March 2, 1871) was a Republican member of the United States House of Representatives from Missouri. He represented Missouri’s 8th Congressional District and served one term in Congress. Elmer’s tenure in the U.S. House began on January 6, 1943, and concluded on January 3, 1945.

During this period, William Price Elmer served as a Representative in the 78th Congress. He was affiliated with the Republican Party and held office as a historical member of Congress from Missouri. Elmer did not serve in subsequent terms, and no additional committee assignments, offices, or contact details are recorded in the available metadata.