Abstract: A heating cooking apparatus includes a heating cooking chamber and a duct member (30). The heating cooking chamber accommodates an object to be heated. The duct member (30) is disposed outside the heating cooking chamber. The heating cooking chamber includes an air intake hole portion that causes the inside and the outside of the heating cooking chamber to be communicated with each other. The duct member (30) includes a main body portion (31) that guides air so that the air travels from a first direction (D1) to a second direction (D2) intersecting the first direction (D1), a suction port (32) through which the air is sucked into the main body portion (31), a blow-out port (33) from which the air is blown out toward the air intake hole portion, and a rectifying portion (35) that determines at least one of a blow-out direction or an airflow distribution of the air at the blow-out port (33) and guides the air to the air intake hole portion.