Michael Werner von Grünau (October 3, 1944 – December 22, 2011) was a Canadian psychologist and neurophysiologist at Concordia University.
von Grünau grew up in West Germany, but emigrated to Canada in about 1965 to study physics at University of Toronto.
In the early 1980s von Grünau moved to the Department of Psychology at Queen's University at Kingston, where he founded a neurophysiology laboratory to study the visual system of cats.
In about 1987, von Grünau spent about 18 months as a postdoctoral fellow at the National Research Council (Canada) in the Division of Physics, under the supervision of Bill Cowan.
In the early 1980s von Grünau conducted neurophysiology studies on the visual system of cats, including on the plasticity of their binocular vision.