Jamaluddin bin Mohd Radzi is a Malaysian politician. He was the state assemblyman for Behrang. In early 2009, along with Mohd Osman Mohd Jailu and Hee Yit Fong, he resigned from the People's Justice Party (PKR) to sit as an independent, supporting the fall of the Mohammad Nizar Jamaluddin-led government and precipitating the 2009 Perak Constitutional crisis.