Conducting polymer nanocomposites are a class of hybrid materials synthesized using conducting polymers with some inorganic materials of different sizes and nature using some chemical or electrochemical techniques giving rise to a new hybrid material with fascinating properties and significant application potential. Conducting polymer nanocomposites has emerged as a boost and opened new doors for researchers in wide applications in the field of optoelectronic devices, batteries, electrochromic devices, biomedical materials, and devices such as sensing, imaging, etc. In the present review, a brief yet comprehensive overview of the concept of conductive polymer nanocomposites is provided with the synthesis of various conducting polymer nanocomposites and their derivatives along with their applications in various fields. Graphical Abstract: (Figure presented.)