| William J. McCoy | |
| State: | Wisconsin |
| State Assembly: | Wisconsin |
| District: | Grant 2nd |
| Term Start: | January 1, 1883 |
| Term End: | January 3, 1887 |
| Predecessor: | Daniel Bartlett Stevens |
| Successor: | Reuben B. Showalter |
| Term Start1: | January 7, 1878 |
| Term End1: | January 6, 1879 |
| Predecessor1: | Joseph Bock |
| Successor1: | Joseph Trotter Mills |
| State Assembly2: | Wisconsin |
| District2: | Grant 4th |
| Term Start2: | January 3, 1876 |
| Term End2: | January 1, 1877 |
| Predecessor2: | Delos Abrams |
| Successor2: | District abolished |
| Party: | Democratic |
| Birth Date: | 30 September 1834 |
| Birth Place: | Argyle, New York, U.S. |
| Death Place: | Lancaster, Wisconsin, U.S. |
| Restingplace: | Beetown Cemetery, |
William John McCoy (September 30, 1834June 28, 1897) was an American farmer, Democratic politician, and Wisconsin pioneer. He served six years in the Wisconsin State Assembly, representing Grant County.
McCoy was born on September 30, 1834, in Argyle, New York.[1] [2] He moved to Beetown, Wisconsin, in 1852 and to Lancaster, Wisconsin, in 1880.[1] McCoy died on June 28, 1897.[1]
McCoy was elected to the Assembly in 1875 and served four terms.[1] Additionally, he was Chairman of the Beetown Board for five years between 1869 and 1876. He was a Democrat.[2]
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General Election, November 2, 1875
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General Election, November 6, 1877
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General Election, November 7, 1882| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General Election, November 4, 1884| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General Election, November 2, 1886
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