Benjamin Le is a social psychologist whose research focuses on interpersonal relationships. He has published on the topics of commitment in close relationships, social cognition, breakup, emotions, social networks, geographic separation, social media, and research methodology.

Professor Le is originally from northern California and has been a member of the Department of Psychology at Haverford College since 2001, where he teaches courses on social psychology, close relationships, environmental psychology, intro/general psychology, and research methods/statistics. Prior to that he completed his undergraduate studies at Grinnell College and earned his doctorate at Purdue University. He is on the editorial boards of the journal Personal Relationships, the Journal of Social and Personal Relationships, and the Journal of Personality and Social Psychology, and has reviewed for all of the major publications in social psychology and relationship research. Prof. Le is a longstanding member of both the Society for Personality and Social Psychology (SPSP) and the International Association for Relationship Research (IARR).

In 2011 he co-founded, which won the 2012 Media Prize awarded by the Society for Personality and Social Psychology and to date (February 2017) has logged nearly 8 million page views.