The present disclosure is related to an air conditioner. The air conditioner according to one aspect of the present disclosure comprises a case having an inner space; a fan disposed inside the case; a frame coupled to a front portion of the case; a front plate coupled to the frame to be movable in a front-rear direction, wherein a suction port is formed between the front plate and the frame; a discharge flow path that air blown by the fan flows and that is spaced rearward from the suction port; and a discharge grille disposed downstream of the discharge flow path and comprising a guide inclined forward as the guide goes away from the discharge flow path, thereby preventing air discharged along the guide from being reintroduced.