Suicide continues to be a public health crisis among adolescents in the United States. Suicide prevention requires a comprehensive understanding of the factors that lead to death from suicide. Housing stability is an important social determinant of health, and literature has begun to describe how housing instability can affect mental health, as well as suicidal behavior. The aim of the present study was to assess the relationship between lifetime housing mobility among adolescents and suicidal behavior (both ideation and attempt). This study examines disparities in housing mobility and suicidal behavior to determine whether certain population subgroups are disproportionately impacted. We undertook a cross-sectional study using data from Wisconsin's Youth Risk Behavior Survey administered during the Fall of 2019, which assessed Wisconsin middle and high school students. We find that housing mobility, as measured in the lifetime number of residences, was associated with an increased risk of suicidal ideation and behavior. We also demonstrate disparities by race, disability status, and sexual orientation. Findings from this study can be used to not only drive change to support students at the school or school district level but also to drive policy change at the societal level. (PsycInfo Database Record (c) 2024 APA, all rights reserved).