Slavery is a significant factor to consider when studying Mexica society and its economy, including societal roles and gendered labor. Many scholars who explore slavery within this culture and state look at the topic from specific angles and focus on the post-conquest and colonial periods. Pre-Columbian slavery is mentioned only briefly in the histories of the Mexica despite it being a key facet of their way of life. Questions of gender and class in relation to slavery are often missing from examinations of the topic. This project will, therefore, examine the process of enslavement, slave status and labor, and the written and visual evidence of enslaved individuals within Mexica society during the fifteenth and early sixteenth century. By specifically examining slavery within the city-states of Tenochtitlan, Texcoco, and the Mexica region, this thesis will argue that enslaved women played a much more significant role than enslaved men, and that slaves constituted a social class in pre-Columbian Mexica society.