--- - |2+ Background This study examines the relationship between three different types of social connectivity and suicidal thoughts and behaviors. Methods Using the Add Health dataset, three domains of social connection were explored: parental connection, school connection, and social integration. Logistic regression was used to examine whether changes over time in connectedness predicted suicidal thoughts and behavior. Results Youth whose difference scores on social integration and parental connectedness increased were less likely to experience suicidal ideation. Increases in difference scores for perceived school connectedness protected youth who reported ideation from engaging in a suicide attempt. Conclusions Perceptions of social connection are key factors in understanding adolescent suicidal thoughts and behaviors. It is important to consider social connection across different relationship contexts. - Child and Adolescent Mental Health, Volume 23, Issue 4, Page 341-350, November 2018.