The William Lowndes Yancey Law Office is located at the corner of Washington and Perry Streets in Montgomery, Alabama.

It served as the law offices for one of the South's leading advocates of secession from the United States, William Lowndes Yancey, from 1846 until his death in 1863.

Yancey wrote Alabama's Ordinance of Secession after the election of Abraham Lincoln and subsequently served as the Confederacy's Commissioner to England and France.

The late 1970s brought redevelopment of the site and the building was altered, this caused substantial losses to enough of the historic elements that the landmark designation was withdrawn on March 5, 1986.

[2] As a lawyer, populist legislator, firebrand orator, and party leader, William Lowndes Yancey was an important figure in sectional politics in the leadup to the Civil War.