Doug Frost is a Master of Wine and Master Sommelier as well as an author and wine consultant based in Kansas City, Missouri. Frost is one of three individuals in the world to hold simultaneously the Master of Wine and Master Sommelier titles, achieving his MS in 1991 and MW in 1993. The Wine Spectator has bestowed the accolade of Master of Spirits on Mr. Frost. With Dale DeGroff, Steve Olson, Paul Pacult, Andy Seymour and David Wondrich, Frost created BAR (Beverage Alcohol Resource) in 2005. He was awarded Beverage Innovator of the Year 2009 by Cheers Magazine, and he continues to teach and examine for BAR and within the Master Sommelier and Master of Wine programs. He is the author of three books, Uncorking Wine (1996), On Wine (2001), and Far From Ordinary: The Spanish Wine Guide (third edition 2009) and is a contributing editor of the Oxford Companion to Spirits and Cocktails, due to be released in 2021.

Frost is the Emmy Award winning creator and host of the KCPT-TV hosted short series called FermentNation. He is also the founder and director of the Jefferson Cup Invitational Wine Competition, a twenty-two-year-old national competition. As the president of the recently created Best USA Sommelier Competition, a member of the Association de la Sommellerie Interationale, the global forum for sommelier competitions, he organizes the process by which the U.S. national sommelier champion is chosen.