The Ritz London is a 5-star luxury hotel at 150 Piccadilly in London, England. A symbol of high society and luxury, the hotel is one of the world's most prestigious and best known. The Ritz has become so associated with luxury and elegance that the word "ritzy" has entered the English language to denote something that is ostentatiously stylish, f…The Ritz London is a 5-star luxury hotel at 150 Piccadilly in London, England. A symbol of high society and luxury, the hotel is one of the world's most prestigious and best known. The Ritz has become so associated with luxury and elegance that the word "ritzy" has entered the English language to denote something that is ostentatiously stylish, fancy, or fashionable.