Hellwig is a German surname. Notable people with the surname include:
Christian Hellwig, German economic theorist and macroeconomistFritz Hellwig (born 1912), German CDU politician and European CommissionerHelen Hellwig (1874–1960), American tennis playerJames Brian Hellwig (1959–2014), American professional wrestlerJason Hellwig (born 1971), Australian sport administratorJohann Christian Ludwig Hellwig (1743–1831), German entomologistMaria Hellwig (1920–2010), German yodeler, popular performerMarcus Hellwig (born 1965), German journalistMargot Hellwig (born 1941), German folk singerMartin Hellwig (born 1949), German economistMonika Hellwig (1929–2005), German-born United States-based British academic, author, educatorOtto Hellwig (1898–1962), German SS officer