Todd Longstaffe-Gowan is a British landscape architect and author.

He was born in Canada, but left when still a boy.^[1]

Longstaffe-Gowan studied Environmental Studies at the University of Manitoba, Landscape Architecture at Harvard University and completed his PhD in Historical Geography at University College London.^[2]

He wrote English Garden Eccentrics in 2022.^[3] His 2012 The London Square: Gardens in the Midst of Town was called "beautifully illustrated and lovingly researched history" in The Guardian.^[4]

In 2024, he published Lost Gardens of London with Modern Art Press.^[5]