Topological insulators (TIs) have garnered significant attention in recent years due to their unique electronic properties, which combine insulating bulk states with conductive surface states protected by time-reversal symmetry. These materials exhibit robust surface conductivity, making them promising candidates for next generation thermoelectric devices. This mini-review explores the recent advance ments in the application of topological insulators in thermoelectric devices. We discuss the fundamental properties of TIs, their potential advantages in enhancing thermoelectric performance, and the challenges that remain in realizing their full potential in practical applications. The review concludes with a perspective on future research directions that could bridge the gap between theoretical predictions and experimental realizations in this emerging field. © TheMinerals, Metals & Materials Society 2025.