John Catt

John Catt (1939 – 7 December 2017) was a British geologist and soil scientist.

Catt spent most of his research career at the Rothamsted Experimental Station, where he made major contributions Quaternary paleopedology and soil management. After retiring from Rothamsted, he was appointed an honorary professor at University College London, and worked on Hertfordshire Geology and Landscape (2010), which was acclaimed as a definitive text on the natural history of Hertfordshire.

He received lifetime achievement awards from the Geological Society (2015) and the Hertfordshire Natural History Society (2013).