The Canadian Encyclopedia — neutral, cited, updated
July 26, 2026Sources cited
Canadianwire.
Canada’s encyclopedia & explainer
HomeScience & NaturePsychologySigmund Freud
Science & Nature • Psychology

Sigmund Freud

Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis. He is widely associated with theories of the unconscious mind, repression, infantile sexuality, and the structural model of the psyche. His work had a major influence on psychology, psychiatry, and broader 20th-century thought.

Early life and education

Freud was born on 6 May 1856 in Freiberg, Moravia, then part of the Austrian Empire (now Příbor, Czech Republic). He later studied medicine in Vienna. He began his career in neurology before developing the ideas that led to psychoanalysis.

Psychoanalysis

Freud developed psychoanalysis as a theory of mind and a therapeutic method. Central to his approach were free association, dream interpretation, repression, and the role of unconscious conflicts. He spent much of his professional life in Vienna.

Major ideas

Freud’s best-known theories include the unconscious mind, infantile sexuality, and the structural model of the psyche—the id, ego, and superego. He argued that mental life is shaped by hidden forces and early experiences.

Influence and criticism

Freud strongly influenced psychotherapy, psychology, and cultural criticism in the 20th century. His work has also been widely debated and criticized, especially for its scientific methods and emphasis on sexuality. Freud's theories also influenced Canadian psychology, psychiatry, psychotherapy, and humanities scholarship, and he remains a standard figure in psychology curricula in Canada. Freud died in London, England on 23 September 1939.

Key facts

  • Freud is commonly described as the founder of psychoanalysis.
  • He originally trained and worked as a neurologist before becoming known for psychoanalytic theory.
  • His work emphasized the importance of unconscious mental processes in shaping behaviour.
  • He introduced or refined influential concepts including repression, dream interpretation, and the tripartite structure of the mind.
  • Freud’s ideas became highly influential in psychology and psychiatry, but also controversial.
🍁
Canadian context

Freud’s theories influenced Canadian psychology, psychiatry, psychotherapy, and humanities scholarship, and he remains a standard figure in psychology curricula in Canada.

Frequently asked questions

Who was Sigmund Freud?
Sigmund Freud was an Austrian neurologist and the founder of psychoanalysis.
What is Freud best known for?
He is best known for developing psychoanalysis and for theories about the unconscious mind and repression.
What are Freud’s id, ego, and superego?
These are parts of Freud’s structural model of the mind, which he used to explain inner psychological conflict.
Where and when was Freud born?
He was born on 6 May 1856 in Freiberg, Moravia, in the Austrian Empire.
When did Freud die?
He died on 23 September 1939 in London, England.
Why is Freud controversial?
His theories, especially on sexuality and the unconscious, were highly influential but also criticized for limited empirical support.

References

  1. Encyclopaedia Britannicahttps://www.britannica.com/biography/Sigmund-Freud
    Supports: Birth, death, nationality, and summary of Freud’s role as founder of psychoanalysis.
  2. Internet Encyclopedia of Philosophyhttps://iep.utm.edu/freud/
    Supports: Freud’s key ideas, including the unconscious, repression, infantile sexuality, and psychoanalysis.
  3. BBChttps://www.bbc.co.uk/history/historic_figures/freud_sigmund.shtml
    Supports: Freud’s identity as Austrian neurologist, founder of psychoanalysis, and his influence and controversy.
  4. Freud Museum Londonhttps://www.freud.org.uk/schools/resources/who-was-sigmund-freud/
    Supports: Freud as founder of psychoanalysis and basic biographical information.