This entry examines the academic biography, scholarly contributions, and impact and relevance of Erik Erikson. Erikson (1902–1994) was a psychoanalyst and developmental psychologist known for his eight-stage lifespan theory of psychosocial development, his work on self and identity, and his contributions to psychobiographical and early cultural psychology methodology. His major works include Childhood and Society, Young Man Luther, and Gandhi’s Truth. For his book on Gandhi, he was awarded both the National Book Award and the Pulitzer Prize, demonstrating influence beyond child psychoanalysis. His work challenged the orthodox Freudian view of the primacy of the first 5 years of life, giving more emphasis to the role of ego and self-determination and the influences of society and culture. On his death, the New York Times featured his obituary and photograph, beginning on its front page, reflecting the enduring influence of Erikson’s oeuvre within and beyond academe.