Psycho-Analytic theory was propounded by :

Psycho-Analytic theory is the framework that explains personality and behavior primarily through the influence of unconscious mental processes, unresolved childhood conflicts, and the dynamic interplay among the id, ego, and superego.

Sigmund Freud, an Austrian neurologist, founded psychoanalysis in the late nineteenth and early twentieth centuries. He introduced core constructs such as the unconscious mind, defense mechanisms, and the psychosexual stages of development. This entire body of work is precisely what is termed the Psycho-Analytic theory, making Freud its propounder.

Cross-check against the other named psychologists confirms this by elimination:

• Gordon Allport is associated with trait theory of personality, which explains individual differences through a hierarchy of enduring traits (cardinal, central, and secondary) rather than through unconscious conflict.

• J. P. Guilford is associated with the Structure of Intellect model, which maps intelligence along operations, contents, and products dimensions -- a cognitive-ability framework unrelated to unconscious drives or personality development.

Since neither Allport's trait theory of personality nor Guilford's model of intelligence involves unconscious-driven personality development, the Psycho-Analytic theory is attributable solely to Sigmund Freud.