Guy M. McCullough Jr (born c. 1962) is an advertising, marketing and public relations professional.
McCullough earned a bachelor's degree in political science at the University of Alabama in 1983. While still in school he served as press secretary and media producer for George McMillan's unsuccessful 1982 campaign for Governor of Alabama.
He founded McCullough Advertising in 1986 and co-founded the internet-focused Agile Brands with Scott Schram in 2009. He was also involved with McMillan's City Stages music festival, marketing and promoting the event from 1989 to 2009.
McCullough is also a licensed amateur radio operator and a board member of the Alabama SKYWARN Foundation.