This chapter presents a concise description of the performance of graphene in thermoelectrics. The mechanical, electrical, and optical characteristics makes graphene an ideal candidate material for thermoelectric devices. The electronic attributes of graphene in organic and inorganic composites clarify its role in the expansion of the electrical conductivity and Seebeck coefficient via charge transport. Heat transportation using the carriers incorporates thermal conductivity reduction. In the last sections, the figure of merit for the role of the graphene-based thermoelectrics is discussed along with the applications for wearable/flexible graphene-based thermoelectric devices.