A nationwide study (Kosciw et al. 2016) reveals a troubling truth: More than 80% of students who identify as lesbian, gay, bisexual, or transgender (LGBT) have experienced verbal or physical harassment at school and reported higher absenteeism and lower grades due to this harassment. Even more troubling: Many of these students (about 60%) reported hearing disparaging remarks about LGBT people from teachers and staff. Those of us wishing to address this harassment may think our only recourse is to intervene when we witness homophobic or transphobic bullying. Protecting LGBT students from bullying is, of course, important. But what if we could prevent such bullying in the first place? Creating a culture where LGBT students are included and valued in our classrooms will help. As we work toward addressing all learners in our instruction, we can become effective allies of our LGBT students. This article describes how.