Nonreporting makes it difficult to ascertain how many people have experienced cyberstalking and the seriousness of its impact. Clarifying the reasons victims don’t report cyberstalking will allow us to increase reporting, thereby improving our ability to convey the severity of cyberstalking to decisionmakers who can protect and empower victims through changes to policy and regulation. A theory from criminology, Focal Concerns Perspective (FCP), serves as our lens to examine nonreporting reasons in both IS and interdisciplinary literature using the focal concerns as categories. The three focal concerns adapted to cyberstalking reporting are 1) the seriousness of the offense, 2) the cost of reporting, and 3) the likelihood of conviction. We examine the influence of each focal concern through a scenario-based factorial survey to determine the most influential focal concerns and reasons for nonreporting. Our research will provide researchers and practitioners actionable directions for combatting cyberstalking nonreporting.