Thermoelectric conversion module

A thermoelectric conversion module according to the present disclosure includes a first substrate, a second substrate, and a peripheral thermoelectric conversion element group and a central thermoelectric conversion element group, each of which groups is disposed between the first substrate and the second substrate, and contains a plurality of thermoelectric conversion elements. The peripheral thermoelectric conversion element group is disposed in an area including peripheries of the first substrate and the second substrate, and the central thermoelectric conversion element group is disposed closer to a center of the first substrate and a center of the second substrate than the peripheral thermoelectric conversion element group. The plurality of thermoelectric conversion elements of the central thermoelectric conversion element group are disposed more densely than the plurality of thermoelectric conversion elements of the peripheral thermoelectric conversion element group.