Robert Geiss (born January 29, 1964) is a German businessman and TV personality, best known for his show Die Geissens – Eine schrecklich glamouröse Familie, in which he enjoys his luxurious lifestyle together with his family. He is married to Carmen Geiss.
As a teenager, Robert Geiss did not want to go to school because he thought that "if you want to make money, you cannot sit at school every day". His father Reinhold Geiss offered him a job as a tradesman in his company, which Robert Geiss declined. He then went on holiday to Spain, where he bought a pair of fitness trousers that he liked. When he returned to Cologne, Geiss decided to design similar clothing for German fitness studios and founded Uncle Sam in 1986. Having sold his inventory very quickly over the winter season, Geiss started buying shirts and pants for 10 DM in Turkey. He then re-sold them for 49 DM in Germany. At the height of his success, Geiss employed 120 people. At some point, Kaufhof AG wanted to buy the firm, but Geiss declined because of legal reasons. In 1995 he finally sold his company for an undisclosed amount to an anonymous buyer and moved to Monaco with his wife Carmen.