| John A. Conant | |
| State: | Wisconsin |
| State Senate: | Wisconsin |
| District: | 21st |
| Term Start: | January 6, 1919 |
| Term End: | January 1, 1923 |
| Predecessor: | Frank H. Hanson |
| Successor: | Max W. Heck |
| Office1: | District Attorney of Marquette County, Wisconsin |
| Term Start1: | January 1, 1915 |
| Term End1: | January 1, 1919 |
| Predecessor1: | John A. Metzler |
| Successor1: | John A. Metzler |
| Party: | Republican |
| Birth Date: | 7 August 1887 |
| Birth Place: | Weyauwega, Wisconsin, U.S. |
| Death Place: | Marquette County, Wisconsin, U.S. |
| Restingplace: | Westfield East Cemetery, |
| Alma Mater: | University of Minnesota |
| Profession: | Lawyer |
John A. Conant (August 7, 1887December 3, 1964) was an American lawyer and Republican politician from Marquette County, Wisconsin. He was a member of the Wisconsin Senate, representing Wisconsin's 21st Senate district during the 1919 and 1921 sessions. He also served as district attorney of Marquette County.
Conant was born on August 7, 1887.[1] He graduated from high school in Eagle River, Wisconsin, and from the University of Minnesota.
Conant was elected to the Senate in 1918. He had been District Attorney of Marquette County, Wisconsin, since 1915. Conant resigned from that position in 1919 to take his Senate seat. He was a Republican.