William J. Gantter (June 15, 1885 – February 25, 1942) was a member of the Wisconsin State Assembly.
Gantter was born on June 15, 1885, in Kaukauna, Wisconsin.
[1] During World War I, he served in the United States Army.
Gantter was a member of the Assembly from 1939 to 1940.
His term as mayor was cut short by his death, on February 25, 1942.