Walker Brooke (December 25, 1813 – February 18, 1869) was an American politician who served as a Deputy from Mississippi to the Provisional Congress of the Confederate States from 1861 to 1862.

He graduated from the University of Virginia at Charlottesville in 1835, studied law, was admitted to the bar in 1838 and commenced practice in Lexington, Mississippi.

Brooke was elected as a Whig to the U.S. Senate to fill the vacancy caused by the resignation of Henry S. Foote and served from February 18, 1852, to March 3, 1853; he was not a candidate for reelection and resumed the practice of law.

In 1857 he moved to Vicksburg and continued the practice of law; he was a delegate to the constitutional convention in 1861 and became affiliated with the Democratic Party that year.

He was elected a member of the Provisional Congress of the Confederate States from Mississippi in 1861 and served one year; he was then appointed a member of the permanent military court of the Confederate States.