Susana Chávez Castillo (November 5, 1974 – c. January 6, 2011) was a Mexican poet and human rights activist who was born and lived most of her life in her hometown of Ciudad Juárez. She is credited with authorship of the phrase "Not one more", which was used by the civil rights organizations and their supporters struggling to clarify the plight of women in Juárez and to end a wave of killings aimed specifically at women since 1993.