The purpose of the present paper is to assist cognitive-behavioral therapists who are treating erectile dysfunction among gay men. Little information is available to cognitive-behavioral therapists about the psychological and social effects of erectile dysfunction in this population, or how to incorporate the concerns of gay men with erectile dysfunction into a case conceptualization and treatment plan. The present paper provides an overview of the extant research on erectile dysfunction and of its treatment among gay men. The application of clinical research on erectile dysfunction to treatment for gay men will be illustrated using two case examples. (Contains 2 tables and 1 figure.)