Silver selenide thin films have been electrodeposited potentiostatically from aqueous acid solutions containing silver ions complexed with SCN⁻ and selenium dioxide at room temperature. The electrodeposition reactions were studied by cyclic voltammetry. The deposited films were characterized by X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectra (XPS) and scanning electron microscopy (SEM). The influence of deposition parameters such as potential, electrolyte composition and pH-value on the chemical composition and crystallinity of the films is discussed. The compositions of silver selenide films were controlled continuously from Ag-rich to near stoichiometry by adjusting the bath concentration and deposition potential. After annealing and slowly cooling in argon atmosphere, the films are highly (002) oriented. Furthermore, the excess Ag in the films transformed into Ag₂Se by annealing in Se vapor at 230 °C for 4–5 h.