A photoelectric conversion module comprising a plurality of photoelectric conversion elements (31, 32) that are electrically coupled to each other, where each of the photoelectric conversion elements (31, 32) sequentially includes a first electrode, a photoelectric conversion layer, and a second electrode, the plurality of photoelectric conversion elements (31, 32) including a first photoelectric conversion element and a second photoelectric conversion element; a coupling portion configured to couple the first photoelectric conversion element and the second photoelectric conversion element in series; a first partition portion between the first electrode forming the first photoelectric conversion element and the first electrode forming the second photoelectric conversion element; and a second partition portion (12") between the second electrode forming the first photoelectric conversion element and the second electrode forming the second photoelectric conversion element, wherein the first electrode or the second electrode forming the first photoelectric conversion element includes a contact region which is in contact with the coupling portion, characterized by a value of X/(Y-X) is 0.3 or greater, where X denotes a length of the contact region in a coupling direction in which the first photoelectric conversion element and the second photoelectric conversion element are coupled to each other, and Y denotes a length in the coupling direction between an end of the first partition portion at a side of the second partition portion (12") and an end of the second partition portion (12") at a side of the first partition portion. a plurality of photoelectric conversion elements (31, 32) that are electrically coupled to each other, where each of the photoelectric conversion elements (31, 32) sequentially includes a first electrode, a photoelectric conversion layer, and a second electrode, the plurality of photoelectric conversion elements (31, 32) including a first photoelectric conversion element and a second photoelectric conversion element; a coupling portion configured to couple the first photoelectric conversion element and the second photoelectric conversion element in series; a first partition portion between the first electrode forming the first photoelectric conversion element and the first electrode forming the second photoelectric conversion element; and a second partition portion (12") between the second electrode forming the first photoelectric conversion element and the second electrode forming the second photoelectric conversion element, wherein the first electrode or the second electrode forming the first photoelectric conversion element includes a contact region which is in contact with the coupling portion, characterized by a value of X/(Y-X) is 0.3 or greater, where X denotes a length of the contact region in a coupling direction in which the first photoelectric conversion element and the second photoelectric conversion element are coupled to each other, and Y denotes a length in the coupling direction between an end of the first partition portion at a side of the second partition portion (12") and an end of the second partition portion (12") at a side of the first partition portion.