Michael Lewis may refer to:

• Michael Lewis (singer-songwriter), A recording artist.
• Michael Lewis (author), a non-fiction author
• Michael Lewis, an Australian cricketer;
• Michael Lewis (investor), British shareholder in German Axel Springer AG
• Michael Lewis (NFL safety), an American Football player for the Philadelphia Eagles
• Michael Lewis (NFL receiver), an American Football player for the New Orleans Saints
• Michael Lewis (actor), a 1950s stage actor and son of Sinclair Lewis and Dorothy Thompson