Gad Saad (; born October 13, 1964) is a Canadian evolutionary psychologist at the John Molson School of Business (Concordia University, Montreal, Quebec, Canada) who is known for applying evolutionary psychology to marketing and consumer behaviour.
He holds the Concordia University Research Chair in Evolutionary Behavioural Sciences and Darwinian Consumption (2008–2018) and has a blog at Psychology Today titled Homo Consumericus.