| Michael K. Reilly | |
| State: | Wisconsin |
| Term Start: | November 4, 1930 |
| Term End: | January 3, 1939 |
| Predecessor: | Florian Lampert |
| Successor: | Frank Bateman Keefe |
| Term Start1: | March 4, 1913 |
| Term End1: | March 3, 1917 |
| Predecessor1: | Michael E. Burke |
| Successor1: | James H. Davidson |
| Office2: | District Attorney of Fond du Lac County, Wisconsin |
| Term Start2: | January 1, 1899 |
| Term End2: | January 1, 1901 |
| Predecessor2: | Herbert E. Swett |
| Successor2: | Ray L. Morse |
| Party: | Democratic |
| Birth Date: | 15 July 1869 |
| Birth Place: | Empire, Wisconsin, U.S. |
| Death Place: | Neptune Township, New Jersey, U.S. |
| Restingplace: | Woodlawn Cemetery, |
| Profession: | Lawyer, politician |
Michael Kieran Reilly (July 15, 1869October 14, 1944) was an American lawyer and Democratic politician from Fond du Lac, Wisconsin. He served six terms in the U.S. House of Representatives, representing Wisconsin's 6th congressional district from 1913 to 1917, and from November 1930 to January 1939. Earlier in his career, he served as district attorney of Fond du Lac County and city attorney of Fond du Lac.
Michael K. Reilly was born in the town of Empire, Wisconsin, in Fond du Lac County, on July 15, 1869. After completing his primary education, he graduated from the Oshkosh Normal School (now University of Wisconsin–Oshkosh), then continued his education at the University of Wisconsin–Madison. He graduated from the University of Wisconsin–Madison College of Letters and Science in 1894, and then graduated from the University of Wisconsin Law School in 1895.[1] He served as Fond du Lac County district attorney for two years (1899–1900) and city attorney of Fond du Lac from 1905 to 1910. Between stints in the United States Congress, he continued to practice law in Wisconsin.
In 1912, Reilly was elected a member of the Democratic Party to the Sixty-third United States Congress as the representative of Wisconsin's 6th congressional district. He was reelected to the Sixty-fourth Congress but lost his re-election bid to Republican James H. Davidson to the Sixty-fifth Congress. To fill the vacancy caused by the death of Florian Lampert, Reilly was once again elected to the Seventy-first Congress. Once again representing Wisconsin's sixth district. He served another four terms until he lost a re-election bid to Republican, Frank Bateman Keefe, in 1938. Reilly died in Neptune, New Jersey, on October 14, 1944, and is interred at Woodlawn Cemetery in the Bronx, New York.