Pabst Brewing Company (/ˈpæpst/) is an American brewery based in San Antonio, Texas. It was founded in 1844 in Milwaukee, Wisconsin, by Jacob Best and later named after Frederick Pabst, who expanded the company significantly during the late 19th century. The company became one of the largest brewers in the United States by the turn of the 20th century. It oversees a diverse portfolio of legacy American beer brands, including its flagship Pabst Blue Ribbon, its former Milwaukee rival Schlitz, Old Milwaukee, and Lone Star.
Though it closed its Milwaukee brewing facility in 1996, the company continued operations through contract brewing arrangements with other manufacturers. Most recently, it has been in concurrent production agreements with City Brewing Company since 2019 and AB InBev since 2025. Pabst Brewing Company underwent a series of ownership changes in the 21st century; since 2021, Pabst has been fully owned by Blue Ribbon Partners, an investment platform led by American beer and beverage entrepreneur Eugene Kashper.