Alfred Ernest Jones (1 January 1879 – 11 February 1958) was a British neurologist and psychoanalyst, and Sigmund Freud's official biographer. Jones was the first English-speaking practitioner of psychoanalysis and became its leading exponent in the English-speaking world where, as President of both the British Psycho-Analytical Society and the International Psychoanalytic Association in the 1920s and 1930s, he exercised unmatched influence in the establishment of its organisations, institutions and publications.