The inner critic or critical inner voice is a concept used in popular psychology and psychotherapy to refer to a subpersonality that judges and demeans a person.

A concept similar in many ways to the Freudian superego as inhibiting censor, the inner critic is usually experienced as an inner voice judging a person, saying that the person is bad, wrong, inadequate, worthless, guilty, and so on.

The inner critic often produces feelings of shame, deficiency, low self-esteem, and depression.^{[page needed]} It may also cause self-doubt and undermine self-confidence. It is common for people to have a harsh inner critic that is debilitating.

Neville Symington suggested that such a severely critical inner object is especially noticeable in narcissism.

Jay Earley and Bonnie Weiss have labeled seven types of inner critics—the perfectionist, the taskmaster, the inner controller, the guilt tripper, the destroyer, the underminer, and the molder.

A number of self-help books deal with the inner critic, though some use other terms to denote it, such as "the judge" or "the gremlin". There are two main approaches to working with the inner critic:

Some psychotherapists suggest that either of these two approaches may be appropriate depending on how the inner critic manifests. If the inner critic is intense and stubborn, a friendly approach of valorizing the inner critic's concerns could be helpful; if the inner critic is mild, it may be more appropriate to gently ignore it and make contact with "suppressed organismic experience".

Robert W. Firestone and Lisa Firestone, in their book Conquer Your Critical Inner Voice, discuss how the inner voice often seems to protect a person from being hurt or feeling abandoned when in reality it reinforces feelings of shame and guilt, sabotages intimate relationships, and leads to self-destructive behaviors. Their book presents a method for externalizing the critical inner voice in order to turn self-criticisms into statements that can be evaluated objectively.