Developing a better mechanistic and multilevel understanding of sexual violence on college campuses can help us evaluate and implement existing interventions, as well as develop new ones. We brought together scientists, practitioners, and college students to collaboratively characterize the systems surrounding alcohol-involved sexual violence on college campuses. Using collaborative model-building, they created models that highlight interconnected and multilevel influences and consequences of sexual violence. Collaborative model-building activities involved two collaborator groups (twelve students and eight practitioners) and a core modeling team (seven scientists). Each collaborator group met for four two-hour sessions to develop systems models of alcohol use and sexual violence on college campuses. The core modeling team facilitated each session and worked between sessions to ensure the successful development of the model. Specific activities included identifying and prioritizing the causes and consequences of alcohol-involved sexual violence, characterizing the causal relationships between these factors, and developing and modifying causal loop diagrams to illustrate these relationships. Both students and practitioners identified key causes and consequences, including both individual-level (e.g., drinking to intoxication) and campus-level (e.g., institutional support for survivors) constructs. Both groups identified the causal relationships between these variables and identified salient, modifiable mechanisms for reducing alcohol-involved sexual violence. The collaborative model-building process successfully included diverse collaborator voices, integrating influential factors across multiple social-ecological levels. This iterative and capability-building approach can bridge intensive modeling efforts with the implementation and development of more effective sexual violence interventions.