Latina feminist writing has for decades provided critical concepts to innovate and transform feminist theory in the United States and beyond. While Latina literature has proliferated over the past forty years, this essay looks at key writers beginning from the 1980s to the present whose work has intervened in the field of feminist theory although their contributions to the field are not always recognized. In the 1970s and 1980s, women of color were in the process of defining them­selves, asserting their agency, and building their own intellectual traditions. The publication of Cherríe Moraga and Gloria Anzaldúa’s This Bridge Called My Back (1981) and Gloria Hull, Patricia Bell Scott, and Barbara Smith’s All the Women Are White, All the Blacks Are Men, but Some of Us Are Brave (1982) set out to expand the definition of feminist to make this analysis relevant to women of color in the United States. These texts sought a signifier, a self-representation that would underscore women’s multiple subjectivities of race, class, sexuality, and gender, generating a theoretical space to critique sexism, homophobia, a gendered analysis of history, politics, institutionalized racism and economic exploitation. Out of their subordination as Latinas and their exclusion from both the male-dominated ethnic studies movements and the white-dominated women’s movements, Chicanas and Latinas sought to create spaces to articulate a feminist consciousness as members of diverse national groups, and as pan-ethnic Latinas, while also articulating political solidarity between Third World women in the United States and women activists south of the border. This chapter looks specifically at Latina and Chicana writers whose writings, essays, poetry and theatre are the foundation of Latina feminist theoretical interventions.