Andres De Los Reyes (born March 18, 1978) is a professor of psychology at University of Maryland College Park.

De Los Reyes has co-authored over 100 peer-reviewed scientific articles and book chapters, and recently completed a term as a Fulbright Canada Research Chair in mental health[1] at the University of Regina.

[2] Professor of Psychology, University of Maryland at College Park[2] 2020–2021, Fulbright Canada Research Chair in Mental Health[3] Director, Comprehensive Assessment and Intervention Program[4] Editor, Journal of Clinical Child and Adolescent Psychology[5] Program Chair, Future Directions Forum[6] De Los Reyes’ research broadly focuses on the most common outcomes of youth mental health assessments, more specifically that informants typically involved in these assessments (e.g., parents, teachers, youth themselves) provide discrepant reports about youth mental health, even when they complete the same measures or respond to the same items (i.e., informant discrepancies).

De Los Reyes' work on these informant discrepancies covers assessments of domains as diverse as autism, social anxiety, disruptive behavior, peer relations, family functioning, depression, and conduct problems[7][8] De Los Reyes is interested in understanding what informant discrepancies tell us about youth undergoing evaluation.

Addressing this question is important because there are no clear guidelines in the field for what to make of this information,[10][11] and De Los Reyes seeks to mitigate uncertainties in research and clinical service decision-making by understanding factors that reliably predict the occurrence of these discrepancies.