The image reading apparatus includes a reading unit, a cover portion which is openable and closable and in which a first surface forms an upper surface of the apparatus in a closed state and a second surface on an opposite side to the first surface supports a document in an opened state, and a document support tray which is displaceable between a storage position where the document support tray is stored in a state along the second surface in a state where the cover portion is closed and a withdrawn position where the document support tray is withdrawn from the storage position to the upstream side in the feeding direction of the document in a state where the cover portion is opened, and which supports at least a portion of a document supported by the cover portion in a state where the cover portion is opened.