Ethnic minority adolescents receive not only less formal mental health services than their ethnic majority peers but also less school-based mental health services. Little is known about the extent to which adolescents indicate their teachers help them with their mental health problems. The aim of the current study was to investigate ethnic differences in teacher-provided informal help for adolescents’ internalizing problems, and whether these could be explained by differences in teacher-reported internalizing problems and teacher–adolescent relationship quality. A sample of adolescents at risk of internalizing problems and their teachers participated in the study (n = 229). Adolescents originated from four ethnic groups in the Netherlands: ...