Over the last two decades, poly(quinoline)s have become the subject of intense research as electroluminescent materials, for example organic light-emitting diodes (OLEDs), thanks to their superior physical properties such as high electron mobility, photoluminescent efficiency, and stability. In this review, we outline the current research efforts on the employment of poly(quinoline)s and their closely related metallated analogs as materials for organic light-emitting diodes. We will describe in detail the advantages and disadvantages of current poly(quinoline) systems, and suggest strategies to overcome current challenges that limit their use in OLEDs.