Relationships among suicidal ideation, involvement in bully-victim problems at school, and perceived social support were investigated with samples of adolescent students (N = 1103 and N = 845) attending secondary school in South Australia. Results obtained from self-reports and peer nomination procedures to identify bullies and victims indicated that involvement in bully-victim problems at school, especially for students with relatively little social support, was significantly related to degree of suicidal ideation.