This list includes notable psychologists and contributors to psychology, some of whom may not have thought of themselves primarily as psychologists but are included here because of their important contributions to the discipline.
Specialized lists of psychologists can be found at the articles on comparative psychology, list of clinical psychologists, list of developmental psychologists, list of educational psychologists, list of evolutionary psychologists, list of social psychologists, and list of cognitive scientists. Many psychologists included in those lists are also listed below:
Haly Abbas (Ali ibn Abbas al-Majusi)
Alfred Adler
Mary Ainsworth
George Albee
Jüri Allik
Lauren Alloy
Gordon Allport, personality psychology
Adelbert Ames, Jr.
Harlene Anderson
John R. Anderson
Ernst Angel
Heinz Ansbacher
Michael Argyle
Magda B. Arnold
Solomon Asch
Roberto Assagioli
John William Atkinson
Aušra Augustinavičiūtė
Averroes (Ibn Rushd)
Virginia Axline, play therapy
Arthur J. Bachrach, underwater and extreme environments
Alan Baddeley
Renee Baillargeon
Ahmed ibn Sahl al-Balkhi
Albert Bandura, social learning theory
Aron K. Barbey
Russell Barkley
Jerome Barkow
Dermot Barnes-Holmes
Simon Baron-Cohen
Deirdre Barrett, dreams and hypnosis
Lisa Feldman Barrett
Lawrence W. Barsalou
Frederic Bartlett
Daniel Batson
Diana Baumrind
Geoffrey Beattie, body language, psychology in sustainable consumption
Hubert Benoit
Richard Bentall
Larry E. Beutler, systematic treatment selection
Alfred Binet, intelligence testing
Robert A. Bjork
Ray Blanchard, sexology
Theodore H. Blau, first practising clinician elected President of the APA
Stephen F. Blinkhorn
Paul Bloom
Edmund Bourne
Gordon H. Bower
John Bowlby, attachment theory
Nathaniel Branden, self-esteem, objectivism
Franz Brentano
Carl Brigham
Dennis E. Broadbent
Donald Broadbent, cognitive psychology
Urie Bronfenbrenner, ecological systems theory
Kelly Brownell
Jerome Bruner, child development
Emily Bushnell
David Buss
Brian Butterworth
Ruth M. J. Byrne
Mary Whiton Calkins
Donald T. Campbell
Susan Carey
James Cattell, helped establish psychology as a legitimate science
Raymond Cattell, factor analysis, 16 Personality Factors and the Big Five, fluid versus crystallized intelligence
Stephen J. Ceci, intelligence and memory
Jean-Martin Charcot
Nancy Chodorow
Noam Chomsky
Robert Cialdini
Kenneth B. Clark
Lee Anna Clark
Clyde Coombs
Cary Cooper
Leda Cosmides
Catharine Cox
Lee Cronbach, testing and measurement
Mihaly Csikszentmihalyi, happiness and creativity
Martin Daly
Martin Dannecker
John Darley
Daniel O David
Raymond Dean, neuropsychology
Randy Dellosa
John Dewey, functional psychology
Ed Diener, happiness
Dietrich Doerner
Alan Downs
Robin Dunbar
David F. Duncan
Hermann Ebbinghaus, experimental study of memory
Paul Ekman, emotions and facial expressions
Albert Ellis, founder of rational emotive behavior therapy, founder of cognitive-behavioral therapies
Hadyn Ellis
Virgilio Enriquez, founder of Filipino psychology
Erik H. Erikson, Erikson's stages of psychosocial development
Milton H. Erickson
John E. Exner, developed the comprehensive system for administering, coding, and interpreting the Rorschach test
Hans Eysenck
Norman Farberow
Gustav Fechner, founder of psychophysics
Leon Festinger, cognitive dissonance
Cordelia Fine
Susan Fiske
Edna B. Foa
Viktor Frankl, founder of logotherapy
Marie-Louise von Franz
Barbara Fredrickson
Armindo Freitas-Magalhães
Anna Freud
Sigmund Freud
Erich Fromm
Adrian Furnham
John Gabrieli
Gordon G. Gallup, Jr., mirror self-recognition (MSR) test
Francis Galton
Laszlo Garai
Riley Gardner
Elmer R. Gates
Susan Gathercole
Bertram Gawronski
Kenneth Gergen, social constructionism
Hans-Werner Gessmann, humanistic psychodrama
J. J. Gibson
Gerd Gigerenzer, bounded rationality
Gustave Gilbert
Carol Gilligan
Fernand Gobet, cognitive psychology
Stan Gooch
Christian Gostečnik, clinical psychology and marriage-and-family therapist
Irving I. Gottesman, behavioral genetics
Richard Green, sexology
Florence Goodenough
Elizabeth Gould
James Gross
Robert Grosseteste
Félix Guattari, founder of schizoanalysis
J. P. Guilford
Edwin Ray Guthrie
Daniel Gilbert, social psychology
Jonathan Haidt
Jay Haley
G. Stanley Hall
Robert D. Hare
Harry Harlow
Chris Hatcher
Steven C. Hayes
Donald O. Hebb
Fritz Heider
Asgeir Helgason
Hermann von Helmholtz
Hubert Hermans
Richard Herrnstein
William Edmund Hick
James Hillman
Margie Holmes
Edwin Holt
Keith Holyoak
Lara Honos-Webb
Bruce Hood, developmental cognitive neuroscience
Karen Horney
Clark L. Hull
Nicholas Humphrey
Edwin Hutchins
Bärbel Inhelder
William James, James-Lange theory of emotion, psychology of religion
Marie Jahoda
Kay Redfield Jamison, clinical psychology, bipolar disorder
Joseph Jastrow
Julian Jaynes
Arthur Jensen
Marcia K. Johnson
Mark H. Johnson
Philip Johnson-Laird, cognition, psychology of reasoning
Ernest Jones
Mary Cover Jones
Carl Gustav Jung, analytical psychology
Jerome Kagan
Daniel Kahneman, Nobel Prize in Economics, behavioral finance and hedonic psychology
Mieko Kamiya
Jacob Robert Kantor, organized scientific values into a coherent system of psychology
Rachel and Stephen Kaplan, environmental psychology
Leonard Katz
Alan S. Kaufman
Nadeen L. Kaufman
Alan Kazdin
David Keirsey
George Kelly
Harold Kelley
Otto F. Kernberg
Doreen Kimura, sex and cognition
Akiyoshi Kitaoka
Melanie Klein
Brian Knutson
Kurt Koffka, co-founder of Gestalt psychology
Wolfgang Köhler, co-founder of Gestalt psychology
Lawrence Kohlberg, moral psychology
Heinz Kohut
Arthur Kornhauser, industrial psychologist
Stephen Kosslyn
Elizabeth Kübler-Ross
Fritz Künkel, we-psychology
Jacques Lacan
George Trumbull Ladd
Ellen Langer
Jan van der Lans
Karl Lashley
Bibb Latane
Jan Lauwereyns
Richard Lazarus
Timothy Leary
Mark Lepper
Jerre Levy, lateralization of brain function
Kurt Lewin, social psychology
David Lewis
Rensis Likert, Likert Scale
Marsha M. Linehan
Elizabeth Loftus, memory
Konrad Lorenz
Barry Lubetkin
Alexander Luria
Margaret Mahler, Hungarian, central figure in psychoanalysis
George Mandler
Jean Matter Mandler
James G. March, cognitive organizational psychology
Abraham Maslow, Maslow's hierarchy of needs
William Masters and Virginia Johnson, sexology
Rollo May
Rufus May
Dan P. McAdams
David McClelland
James McClelland
William McDougall
Patrick J McGrath
Phil McGraw
Rivka Bertisch Meir
John Money
Peter McGuffin
David McNeill
George Herbert Mead
Paul Meehl
Jacques Mehler
Andrew Meltzoff
Ronald Melzack
Wolfgang Metzger
David E. Meyer
Stanley Milgram
Alice Miller
Jacques-Alain Miller
Munesuke Mita
George A. Miller
Neal E. Miller, biofeedback
Theodore Millon, personality disorders
Brenda Milner
Arnold Mindell, process oriented psychology
Walter Mischel
Jacob L. Moreno, psychodrama
C. Lloyd Morgan, canon
John Morton
Orval Hobart Mowrer
Georg Elias Müller
Henry Murray
Hugo Münsterberg
Charles Samuel Myers
Ulric Neisser
Alexander Sutherland Neill
Erich Neumann
Richard Nisbett
Donald Norman
Kent Norman
Bill O'Hanlon
Charles E. Osgood
J. Buzz Von Ornsteiner
Allan Paivio
Linda Papadopoulos
Ivan Pavlov
Fritz Perls
Christopher Peterson
Jean Piaget, Piagetian psychology and genetic epistemology
Steven Pinker, experimental psychology, cognitive science
Robert Plomin
Michael Posner
Jonathan Potter
James W. Prescott
Zenon Pylyshyn, cognitive psychology
Vilayanur S. Ramachandran
Otto Rank
Rosalie Rayner
Reimut Reiche
Ulf-Dietrich Reips
Daniel Reisberg
Robert Remez
Samuel Renshaw
Cecil R. Reynolds
Judith Rich Harris
Sylvia Rimm
Carl Rogers, person-centered therapy
Eleanor Rosch
Paul Rosenfels
Robert Rosenthal
Barbara Rothbaum, virtual reality therapy
John Rowan
Philip Rubin
David Rumelhart
A. John Rush
Michelle K. Ryan
Jeanne Safer, psychotherapy
Eleanor Saffran
Tamaki Saitō
Virginia Satir
Shlomo Sawilowsky, psychometrics, construct validity for the multitrait-multimethod matrix
Daniel Schacter
Stanley Schachter, affiliation studies, two factor theory of emotion
Roy Schafer
K. Warner Schaie
Edgar Schein
Gunter Schmidt
Kirk Schneider, existential-integrative therapy
Erich Schröger
Walter Dill Scott
Martin Seligman, learned helplessness, positive psychology
Francine Shapiro, founder of EMDR
Tamara Sher
Sara Shettleworth
Hunter B. Shirley
Morita Shoma
Volkmar Sigusch
Herbert A. Simon, Nobel Prize in Economics
Théodore Simon, French psychologist who developed the Binet-Simon scale
B. F. Skinner, founder of radical behaviorism
Victor Skumin
Paul Slovic
Stanley Smith Stevens
Charles Spearman
Elizabeth Spelke
Sabina Spielrein
Robert Sternberg
Saul Sternberg
Paul Stevenson
George M. Stratton, founder of UC Berkeley's department of psychology
Harry Stack Sullivan
Carl Stumpf
William Swann
José Szapocznik
Ali ibn Sahl Rabban al-Tabari
Henri Tajfel, prejudice, social identity
Jeffrey S. Tanaka
Lewis Terman
Edward Thorndike, puzzle boxes, connectionism
L. L. Thurstone, pioneer in psychometrics and psychophysics
Edward Titchener
Edward C. Tolman
John Tooby
Ellis Paul Torrance
Anne Treisman, visual attention, object perception, and memory.
Jeanne Tsai
Endel Tulving
Elliot Turiel, founder of domain theory (primary challenge to Kohlberg's stages of moral development)
John Turner, collaborated with Tajfel on social identity theory and later developed self-categorization theory
Amos Tversky
David Tzuriel
Dimitri Uznadze
Alfons Vansteenwegen
Lev Vygotsky
Henri Wallon, French psychology
Hans-Jürgen Walter, founder of Gestalt theoretical psychotherapy
Brian Wansink
Margaret Floy Washburn, first female psychology PhD
John B. Watson, Watsonian behaviorism
Paul Watzlawick
Ernst Heinrich Weber
David Wechsler
Karl E. Weick, cognitive organizational psychology
Robert Weimar
Max Wertheimer, co-founder of Gestalt psychology
Drew Westen
Michael White, founder of narrative therapy
Ken Wilber, transpersonal psychology, then integral psychology
Glenn D. Wilson, personality and sexual behaviour
Richard Wiseman
Gustav Adolf Wohlgemuth
Donald Woods Winnicott
Robert S. Woodworth
Wilhelm Wundt, father of experimental psychology
Karen Wynn
Robert Yerkes
Irvin D. Yalom
Robert J. Zajonc
Oliver Zangwill
René Zazzo
Bluma Zeigarnik
Philip Zimbardo
Kenneth Zucker
List of psychologists Wikipedia (Text) CC BY-SA