Silver selenide has been prepared by fusion techniques and found to be a good thermoelectric material. The Seebeck coefficient, resistivity, and thermal conductivity have been measured as a function of temperature. The effect of doping with 30 different elements and compounds at different doping concentrations has been studied. The inter‐relationships between the thermoelectric properties have been examined and are discussed. The crystal lattice of silver selenide has been determined, and the subcell and superstructure are elucidated.