Tiffany & Co. (colloquially known as Tiffany's) is a luxury jewelry and specialty design house headquartered on Fifth Avenue in Manhattan. Tiffany is known for its luxury goods, particularly its diamond and sterling silver jewelry. These goods are sold at Tiffany stores, online, and corporate merchandising. Its name and branding are licensed to Coty for fragrances and to Luxottica for eyewear.

Tiffany & Co. was founded in 1837 by the jeweler Charles Lewis Tiffany and became famous in the early 20th century under the artistic direction of his son Louis Comfort Tiffany. In 2018, net sales totaled US$4.44 billion. In 2019, Tiffany operated 326 stores globally in countries such as the United States, Japan, and Canada, as well as Europe, the Latin America and Pacific Asia regions.

On January 7, 2021, French multinational LVMH Moët Hennessy Louis Vuitton acquired majority stake in Tiffany & Co for $15.8 billion Its product line features jewelry, sterling silver, watches, porcelain, crystal, stationery, fragrance, personal accessories, and leather goods. and delisted Tiffany’s stock from the New York Stock Exchange.