Tailor-made functional materials with liquid crystalline order have exhibited great potential as the active components in various optoelectronic devices. They are tremendously contributing toward the development of soft matter optoelectronics. For several reasons, the ability to combine functional nanomaterials with the supramolecular chemistry of liquid crystalline materials has been a topic of current research. Discotic liquid crystals (DLCs) with various metallic, semiconducting, and carbon-based materials with optimized functionalities on the nanometer scale have attracted much attention in liquid crystal nanoscience. This chapter aims to provide comprehensive coverage of the advancement of functional nanomaterials with DLCs, emphasizing the chemical functionality of various nanostructures to incorporate them into DLCs. The discussion focuses on how the self-assembly of functional nanomaterial can tune the charge-carrier transport, thermal stability, optoelectronic and dielectric parameters, response time, and photophysical properties of DLCs. Various strategies to functionalize nanomaterials to self-assemble in DLC have been described. We conclude this chapter by discussing the further development of functional nanomaterial DLCs and their applications in organic electronics.