An imaging element according to an embodiment of the present disclosure includes: a semiconductor substrate having an effective pixel region in which a plurality of pixels is disposed and a peripheral region provided around the effective pixel region; an organic photoelectric converter including a first electrode, a second electrode, a charge accumulation layer, and an organic photoelectric conversion layer, the first electrode being provided on a light receiving surface of the semiconductor substrate and including a plurality of electrodes, the second electrode being opposed to the first electrode, the charge accumulation layer and the organic photoelectric conversion layer being stacked in this order between the first electrode and the second electrode and extending over the effective pixel region; and a first hydrogen-blocking layer that covers above the organic photoelectric conversion layer, a side surface of the organic photoelectric conversion layer, and a side surface of the charge accumulation layer.