Bert Lewis (1895–1950) was a baseball pitcher.
Bert or Bertie Lewis may also refer to:
- Bert Lewis of Chair Entertainment
- Bert Lewis (musician) on Steamboat Willie in 1928
- Bert Lewis, character in list of Secret Army episodes in 1977–1979
- Bertie Lewis (1920–2010), British airman and peace campaigner
- Bertie Lewis (priest) (1931–2006), Welsh clergyman