Matthew Rees (born 1980) is a Welsh former professional rugby union player.

Matthew Rees may also refer to:

• Matthew Rees (racing driver) (born 2005), Welsh racing driver
• Matthew Rees (footballer) (born 1982), Welsh footballer
• Matt Rees, Welsh novelist and journalist
• Matt Rees (comedian), Welsh comedian
• Matthew Rhys (born 1974), Welsh actor