Jack McKenzie
Jack McKenzie, MacKenzie or Mackenzie may refer to:
- Jack Mackenzie, Canadian civil engineer and academic
- Jack MacKenzie (cinematographer), British cinematographer
- Jack McKenzie (actor), Scottish actor
- Jack MacKenzie (footballer, [born 2000)], Scottish footballer
- Jack McKenzie (footballer, born 1881), Australian rules footballer, known as 'Dookie'
- Jack McKenzie (footballer, born 1908), Australian rules footballer, son of 'Dookie'
- Jack McKenzie (ice hockey), Canadian ice hockey player