Relationships between depression and coping among nonattempters, attempters, and repeaters of suicidal acts were examined across adolescence. A representative sample of students (T1: n = 2464; mean age, 13.7 years; 50.8% female; 88.3% participation) was reassessed with the same questionnaire after 1 year (T2). High scorers on the Mood and Feelings Questionnaire were gender- and age-matched randomly with low and middle scorers. This subset was assessed using diagnostic interviews at T2 (n = 345, 94% participation) and 5 years later using the same interview and questionnaire (T3, n = 252; mean age, 20.0 years; 73% participation). The Coping Inventory for Stressful Situations measured coping as three stable traits. Coping changed partly with age, depression, and attempt status. Differences in depression emerged before coping differences and remained stable. Consistently, repeaters reported higher depression and lesser task-oriented coping. Antecedent depression predicted decreased task-oriented coping and increased emotional coping at age 20 years.