| John Leidlein | |
| State Senate: | Michigan |
| Term Start: | 1933 |
| Term End: | December 11, 1934 |
| Predecessor: | Chester M. Howell |
| Successor: | Dale D. Doyle |
| Term Start2: | 1911 |
| Term End2: | 1912 |
| Predecessor2: | Joseph H. Whitney |
| Successor2: | G. Leo Weadock |
| Term Start3: | 1899 |
| Term End3: | 1900 |
| Birth Date: | 3 September 1864 |
| Death Place: | Lansing, Michigan (Kerns Hotel fire) |
| Spouse: | Anna |
| Mawards: | is not set --> |
| Awards: | is not set --> |
John Leidlein (1864-1934) was a member of the Michigan State Senate. He was one of those killed in the Kerns Hotel fire in Lansing on December 11, 1934. Also killed were state representatives Charles D. Parker, Vern Voorhees, T. Henry Howlett, John W. Goodwine, D. Knox Hanna, and Don E. Sias. The men were in Lansing for a special session of the Michigan legislature.[1]