| William H. Doolittle | |
| Office: | Member of the United States House of Representatives from Washington's at-large congressional district |
| Predecessor: | Seat Created |
| Successor: | J. Hamilton Lewis |
| Term Start: | March 4, 1893 |
| Term End: | March 3, 1897 |
| Office1: | Member of the |
| Term Start1: | 1874 |
| Term End1: | 1876 |
| Birth Date: | November 6, 1848 |
| Birth Place: | North East, Pennsylvania |
| Death Date: | February 26, 1914 |
| Death Place: | Tacoma, Washington |
| Nationality: | American |
| Party: | Republican |
William Hall Doolittle (November 6, 1848 – February 26, 1914) was a U.S. Representative from Washington.
Doolittle was born near North East in Erie County, Pennsylvania but in 1859, he moved to Portage County, Wisconsin with his parents.He attended the district school. Early in 1865, he enlisted as a private in the Ninth Wisconsin Battery.In 1867, he went to Pennsylvania and pursued an academic course.He studied law in Chautauqua County, New York, and was admitted to the bar in 1871.He moved to Nebraska in 1872 and commenced practice in Tecumseh, Johnson County.From 1874 to 1876, he served as member of the Nebraska State House of Representatives.He served as assistant United States district attorney from 1876 to 1880.He moved to Washington Territory in 1880 and settled in Colfax, Whitman County, engaging in the practice of law. In 1888, he moved to Tacoma.Doolittle was elected as a Republican to the Fifty-third and Fifty-fourth Congresses (March 4, 1893 – March 3, 1897).He was unsuccessful for reelection in 1896 to the Fifty-fifth Congress.After he left office, he resumed the practice of law.He died in Tacoma, Washington, February 26, 1914 and was interred in Tacoma Cemetery.