IWC International Watch Co. AG, founded International Watch Company, better known as IWC Schaffhausen, is a Swiss luxury watch manufacturer located in Schaffhausen, Switzerland. Originally founded in Switzerland by American watchmaker Florentine Ariosto Jones in 1868, the company was transferred to the Rauschenbach family in 1880 after bankruptcy and has been a subsidiary of the Swiss Richemont Group since 2000.

IWC is best known for its luxury pilot/aviation watches and for being a pioneer in the use of ceramic and titanium in watchmaking. In 2018 IWC was recognized by the WWF for its environmental efforts and received an “Ambitious” rating; placing first amongst fifteen other Swiss watchmakers.