Torger Christian "Toto" Wolff (German pronunciation: [volf], born 12 January 1972) is an Austrian billionaire investor, motorsport executive and former racing driver. Since 2013, Wolff has served as team principal, CEO and co-owner of Mercedes in Formula One, winning eight consecutive World Constructors' Championship titles from 2014 to 2021; he also served as director and CEO of Mercedes-EQ in Formula E, winning two Formula E World Teams' Championship titles.

Wolff began his motorsport career in the Austrian Formula Ford Championship and the German Formula Ford Series. He won his category in the 1994 24 Hours Nürburgring and later competed in the FIA GT Championship and Italian GT Championship. As an investor, Wolff founded Marchfifteen in 1998 and Marchsixteen Investments in 2004, initially focusing on Internet and technology companies. He specialises in strategic investments in medium-sized industrial and listed companies, which have included Williams F1 and German HWA AG.