Marguerite Jones Harbert (born 1924) is an American from the U.S. state of Birmingham, Alabama, with an estimated net worth of $1.7 billion as of 2007. She inherited her wealth from her husband, the construction magnate and founder of Harbert Corporation John M. Harbert, who died in 1995.
Harbert Corporation was one of the largest construction companies in the world with offices worldwide. The company's domestic construction arm was sold in the early 1990s to a division of Birmingham-based Raytheon Engineers & Constructors. This was followed by the company selling its largest and most prominent division, its international construction arm Harbert International, to John's brother Bill L. Harbert. The international construction division is now known as B.L. Harbert International and is headquartered in Birmingham, Alabama.