Elliott Blackstone (1924–2006) was a sergeant in the San Francisco Police Department (SFPD) who served as a pioneer liaison to the city's LGBTQ+ community during the 1960s. He is recognized in civil rights history for his efforts to reduce police harassment and improve relations between law enforcement and marginalized groups, particularly in the Tenderloin district.
In the early 1960s, Blackstone was assigned to the SFPD’s Community Relations Unit. At a time when police raids on gay bars and the targeted arrest of transgender individuals were standard practice, Blackstone advocated for a more humanitarian approach. He worked closely with early activist organizations, including the Council on Religion and the Homosexual and the Daughters of Bilitis, as well as the Glide Memorial United Methodist Church.
Blackstone is frequently noted for his role during the period surrounding the 1966 Compton’s Cafeteria Riot. He acted as an advocate for the rights of transgender people, often providing education to fellow officers regarding gender identity and the legal rights of citizens. His work included efforts to change department policy regarding the arrest of individuals for "cross-dressing" and other vagrancy laws used against the queer community.
Despite facing internal pressure from within the police department for his sympathetic stance toward the "homophile" movement, Blackstone continued his advocacy until his retirement in 1975. In his later years, he was honored by the San Francisco Board of Supervisors and various LGBTQ+ organizations for his historical role in the early struggle for gay and transgender rights in California.