Jack Reynor
- Birthday: 1992-01-23
- Place of birth: Longmont, Colorado, USA
- Also know as: جک رینور
Jack Reynor (born 23 January 1992) is an Irish actor. His notable roles include the films What Richard Did (2012), Transformers: Age of Extinction (2014), Glassland (2014), Macbeth (2015), Sing Street (2016) and Midsommar (2019), as well as the series Strange Angel (2018–2019) and The Peripheral (2022).
