Leon Katz, OC FRSC (August 9, 1909 – March 1, 2004) was a Canadian physicist.

[2] Katz completed his undergraduate and MSc degrees at Queen’s University, and received a PhD from the California Institute of Technology.

After working for Westinghouse Electric Company on radar equipment for aircraft, in Pittsburgh, in 1946 he moved to Saskatoon to become an associate professor at the University of Saskatchewan.

Haslam and Jones he was part of the team that was successful in bring a Betatron to the University of Saskatchewan, that was used as the first radiation therapy facility in the province and also for research.

He was the founding Director of the Saskatchewan Accelerator Laboratory from 1964-1975 that eventually led to the formation of the Canadian Light Source.