Ian MacKenzie or McKenzie may refer to:
- Ian Alistair Mackenzie (1890–1949), Canadian parliamentarian
- Ian MacKenzie (swimmer) (born 1953), Canadian former swimmer
- Iain McKenzie (born 1959), Scottish Labour politician
- Ian Mackenzie-Kerr (1929–2005), British book designer
- Ian Clayton Mackenzie (1909–2009), British diplomat
- Ian MacKenzie (footballer) (1950–2018), English footballer
This disambiguation page lists articles about people with the same name.
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