Mark L. Attanasio is an American businessman from the Bronx who is the principal owner of the Milwaukee Brewers of Major League Baseball (MLB). He is worth an estimated $700 million.

The Milwaukee Brewers are an American professional baseball team based in Milwaukee. The Brewers compete in Major League Baseball (MLB) as a member club of the National League (NL) Central Division. The team's name is derived from the city's association with the brewing industry and has been used by several other baseball teams that have called Milwaukee home. Since 2001, the Brewers have played their home games at American Family Field, which was named Miller Park through the 2020 season and has a seating capacity of 41,900 people.