Charles O. Holliday, Jr. (Chad) is Chairman and former Chief Executive Officer of E. I. du Pont de Nemours and Company (DuPont). He is the Chairman of both the U.S.Council on Competitiveness and the Business Roundtable's Task Force for Environment, Technology and Economy. Holliday is also a founding member of the International Business Council.

Holliday was born in 1948 and grew up in Nashville, Tennessee. He graduated from John Overton High where met his future wife, Ann. Holliday earned his B.S. in industrial engineering from the University of Tennessee in 1970. Holliday started at DuPont in the summer of 1970 at DuPont's Old Hickory site. He then turned a summer job at DuPont into a full-time position as an engineer. He advanced through manufacturing and supervisory positions around the world until he was named CEO in 1998.

Holliday was the 18th CEO of DuPont in more than 200 years of DuPont history. Under Holliday’s leadership, DuPont established a goal of achieving sustainable growth – increasing shareholder and societal value while simultaneously decreasing DuPont's environmental footprint. As a result, DuPont has shifted from being a chemical company to being a science-based products and services company. On September 23, 2008, DuPont announced that Holliday would retire as CEO on December 31, 2008 and that its board of directors had elected Ellen J. Kullman to succeed Holliday with effect from January 1, 2009.