William Jelks Cabaniss Jr. (July 11, 1938 – February 2, 2025) was an American politician and diplomat who served as a member of both chambers of the Alabama Legislature and U.S.

[1] He graduated with a Bachelor of Arts from Vanderbilt University in 1960 and entered the United States Army, where he served as a First Lieutenant with the Airborne Rangers.

He was awarded the Army Commendation Medal in 1964, after a three-year tour of duty in Germany.

After leaving the Army, Cabaniss returned to Birmingham and began his business career with the Southern Cement Company Division of Martin Marietta Corporation.

In 1971, he resigned from his position as Director of Market Development with Southern Cement and started his own company, Precision Grinding, Inc., after acquired the assets of a small metal grinding company, which he transformed into a steel plate processing and metal machining business.