Beatriz Santiago Muñoz (b. 1972, San Juan, Puerto Rico) is an artist and educator who lives and works in San Juan and Annandale-on-Hudson, New York. Working at the intersections of documentary practice and engaged activism, she combines aspects of ethnography and theater in film and video projects that blur boundaries between fact and fiction and explore the possibilities of a decolonized Caribbean. Her subjects have included anarchist communities, the relationship between artwork and work, and post-military land; in the mid-2010s she made a series of short films on former U.S. military sites in Ceiba and Vieques. Her work has been exhibited at Tate Modern, the Guggenheim Museum, kurimanzutto, the 2017 Whitney Biennial and the 2022 Hawaiʻi Triennial, and is in the Whitney's collection. She co-founded Beta-Local, an art organization and experimental education program in San Juan.