August Anheuser Busch IV (born June 15, 1964) is the former CEO of Anheuser-Busch who ended the family control of the company in 2008 when it was sold to InBev.

He is the great-great-grandson of Anheuser-Busch founder Adolphus Busch, the son of former chairman, president and CEO August Busch III. Busch is known by industry insiders as "The Fourth."

Busch's parents divorced when he was five and he lived with his mother. His time with his father was mostly at the brewery and their relationship was, for the most part, professional.

After graduating in 1982 from Parkway West High School in Ballwin, Missouri, August Busch IV studied as an undergraduate at the University of Arizona. He holds both a master’s degree in business administration and a bachelor’s degree magna cum laude in finance from Saint Louis University. He has a brewmaster’s degree from VLB Berlin.

After graduation he followed the family tradition of starting at the bottom of Anheuser-Busch. He worked as a brewing apprentice in the Old Malt House as a union member of Brewers & Maltsters Local 6 in St. Louis, Missouri, as an intern in the Culture Yeast Center, and later as a foreman in packaging and shipping operations.

August Busch may refer to:

Colonel Adolphus Busch (10 July 1839 – 10 October 1913) was the German-born co-founder of Anheuser-Busch with his father-in-law, Eberhard Anheuser. His great-great-grandson, August Busch IV is now on the board of Anheuser-Busch InBev.

Busch was born in 1839 in Kastel, then a district of Mainz in the Grand Duchy of Hesse. He was the second youngest of 22 siblings. The family worked in winery and brewery supplies. He attended the Collegiate Institute of Belgium in Brussels, and left his home in 1857 with three of his brothers for St Louis; Johann, who established a brewery in Washington, Missouri, Ulrich, Jr, who married another daughter of Eberhard Anheuser and settled in Chicago and Anton, a hops dealer that later returned home to Mainz.

His first job in St Louis was working as a clerk in the commission house. He was also an employee at William Hainrichshofen's wholesale company.

He became acquainted with Lilly Anheuser, whose parents had a small brewery which her father Eberhard Anheuser acquired in 1860, renaming it from the Bavarian Brewery to the E. Anheuser Brewery.