Activating mutations and overexpression of EZH2 are found in non-Hodgkin lymphoma (NHL). As a result, several EZH2 inhibitors have been developed and entered clinical investigation. Tazemetostat, first-in-class EZH2 inhibitor, demonstrated enhanced clinical activity in mutant follicular lymphoma and diffuse large B cell lymphoma. With the early activity noted by tazemetostat in B cell lymphomas, the role of EZH2 inhibition in NHL is becoming more evident. This can be leveraged in future rationale combinations to enhance the activity of EZH2 inhibitors.