| William L. Mathues | |
| Office: | 50th Treasurer of Pennsylvania |
| Term Start: | January 1, 1905 |
| Term End: | November 30, 1906 |
| Governor: | Samuel W. Pennypacker |
| Predecessor: | Frank G. Harris |
| Successor: | William H. Berry |
| Birth Date: | 24 March 1862 |
| Birth Place: | Middletown Township, Delaware County, Pennsylvania |
| Death Place: | Media, Pennsylvania |
| Party: | Republican |
William Lincoln Mathues (March 24, 1862 - December 30, 1908) was an American politician who served as Pennsylvania Treasurer from 1905 to 1906.[1] Born and raised on a farm in Delaware County, Mathues attended public schools in Media, became a lawyer, and served as deputy sheriff and prothonotary between 1885 and 1904.[2] [3] He was convicted on corruption charges in connection to the Pennsylvania State Capitol graft scandal and died of pneumonia in 1908 before going to prison.[1]