James Gordon Parr (May 26, 1927 – April 5, 2000) was an English-Canadian academic, broadcaster and provincial civil servant in the province of Ontario, Canada. Parr was an engineer by training specializing in metallurgy and he once hosted a programme on CBC Radio called The Mad Metallurgist aimed at popularizing the discipline. He also wrote several books on the subject including The Engineer's Guide to Steel; Man, Metals and Modern Magic and An Introduction to Stainless Steel.