William Loch Cook

{{Short description|American judge (1869–1942)}}

William Loch Cook (December 6, 1869 – March 5, 1942) was a justice of the Tennessee Supreme Court from 1923 to 1942.

Born in Montgomery County, Tennessee, Cook served in the Tennessee House of Representatives for Dickson County in 1897. In 1908, he was elected to a seat on the Tennessee Ninth Judicial Circuit, where he remained until 1923, when Governor Austin Peay appointed Cook to a seat on the Tennessee Supreme Court vacated by the resignation of Justice D. L. Lansden.{{cite web|url=https://www.tschsociety.org/justices.html|author=Tennessee Supreme Court Historical Society|title=Justices}}