In the last few years, nitrate reduction (NO3R) catalysts composed of both precious and earth-abundant transition metals have come into significant focus because of their promising selectivity and efficiency performance metrics. In particular, Cu-based materials were found and/or predicted to have a high NO3R selectivity. Despite these positive results, the performances, especially in terms of reaction rates, still needs to be significantly augmented as it directly factors into electrolyzer cost and the profitability of this technology. Operating currents typically need to be of several hundred mA/cm 2 or more, a metric not always met with NO3R catalysts Against this backdrop, we developed and investigated a high-rate NO3R system by leveraging our expertise in mixed-metal oxyfluorides synthesis and electrocatalytic applications. In our previous works, we showed that the oxyfluoride catalyst surface, enhanced through electron withdrawing effects imparted by the fluoride ions, gives rise to highly effective catalytic sites for electrochemical water oxidation. We reasoned that the inductive effect of the electronegative fluorine anions incorporated in the metal oxide network would also modulate the activity of the Cu-based materials for NO3R.