D irk Rossmann is a self-made German billionaire and the founder of the Rossmann drugstore chain, one of the largest in Europe. A trained pharmacist, he opened his first self-service drugstore in Hanover, Germany, in 1972, a novel concept at the time. He has since built his company into a massive retail empire.

The Rossmann chain has thousands of stores across Germany and several other European countries, selling a wide range of health, beauty, and personal care products. He pioneered the discount drugstore model in Germany, which proved to be incredibly popular with consumers. The company remains privately held, with Dirk Rossmann and his family owning the majority. He has passed on the day-to-day management of the company to his son, Raoul, but he remains a key figure. He is also a published author, having written a thriller and his autobiography.