The present invention is to provide a photoelectric conversion element having an excellent photoelectric conversion efficiency and responsiveness after heating over time. In addition, the present invention is to provide an imaging element, an optical sensor, a material for a photoelectric conversion element, and a compound. The photoelectric conversion element of the present invention includes a conductive film, a photoelectric conversion film, and a transparent conductive film in this order, in which the photoelectric conversion film contains a compound represented by Formula (1) and an n-type semiconductor material.