Walter Bennett may refer to:
- Dr. Walter Bennett, a fictional character in the video game Half-Life: Blue Shift.
- Walter Bennett (footballer, born 1874) (1874–1908), English international footballer (Sheffield United)
- Walter Bennett (footballer, born 1918) (1918–2009), English footballer (Barnsley, Doncaster Rovers)
- Walter Bennett (footballer, born 1997), Aruban footballer
- Walter Bennett (rugby union) (1906–1979), Australian rugby union player
- Walter Bennett (politician) (1864–1934), Australian politician