Suicide attempts, intimate partner violence, and other forms of interpersonal violence are a significant problem for lesbian, gay, bisexual, and transgender people; however, the extent to which guns contribute to LGBT morbidity and mortality is currently unknown. This study aims to fill gaps in knowledge about LGBT gun violence by generating estimates of gun ownership and attitudes towards gun control by sexual orientation and identifying opportunities to improve data collection about LGBT gun violence through a review of surveillance systems used to track gun violence.