Much effort is currently devoted to implementing new materials in electrodes that will be used in electrochromic (EC) technology. Tungsten oxide (WO3) has emerged as one of the key materials for EC devices (ECDs) since it shows the best EC activity among transition metal oxides. However, hybrid nanostructures have been investigated in order to enhance the EC properties. The introduction of WO3/conducting polymer-based hybrid materials has prompted the development of nanocomposites with properties unmatched by conventional counterparts. Combined with the intrinsic properties and synergistic effect of each component, it is anticipated that these unique organic-inorganic heterostructures pave the way for developing new functional materials. In the current chapter, some of these recent results on WO3/conducting polymer-based hybrid films are discussed, with selected examples chosen from among the deposition of layer-by-layer assembled hybrids, spin-coated, dip-coated materials, surface-initiated-polymerized, chemical bath-deposited films, solvothermal, and electropolymerized materials. In addition to discussing film deposition techniques, an attempt will also be made to indicate how the resulting films might be useful for ECD applications. These new-generation materials are evaluated as an electrode material of ECDs and exhibit improved optoelectronic properties.