| William A. Tateum | |
| Office: | 33rd Speaker of the Michigan House of Representatives |
| Term Start: | January 4, 1893 |
| Term End: | May 29, 1893 |
| Predecessor: | Philip B. Wachtel |
| Successor: | William D. Gordon |
| State House2: | Michigan |
| District2: | Kent County 1st |
| Term Start2: | 1893 |
| Term End2: | 1894 |
| Predecessor2: | Charles Holden |
| Birth Date: | 31 August 1862 |
| Birth Place: | Worcester County, Massachusetts |
| Death Place: | Grand Rapids, Michigan |
| Restingplace: | Newaygo Cemetery, Newaygo, Michigan |
| Birthname: | William Aldrich Tateum |
| Party: | Republican |
| Spouse: | Mary |
| Alma Mater: | Wesleyan University |
| Profession: | Lawyer |
William Aldrich Tateum (August 31 1862 – May 15, 1957) was a Republican member of the Michigan House of Representatives from 1893 through 1894. For his one term, he served as Speaker of the House, during the 37th Legislature.[1]
Born in Worcester County, Massachusetts in 1862, Tateum graduated from Wesleyan University in Connecticut.[2]
He was admitted to the Massachusetts bar before moving to Michigan. Tateum was elected to the Grand Rapids City Council (then called the board of aldermen) in 1891 before his election to the House in 1892.[3]
Tateum died on May 15, 1957, aged 94.[4]