The effective schools literature has shown that school-contextual aspects matter for students' academic and social outcomes. A potential link here may be the quality of the relationships between teachers and students, but few studies have investigated whether features of school effectiveness are in fact associated with students' perceptions of teacher caring, which is the main purpose of this study. Based on recently collected data from 150 senior-level school units in Stockholm, school effectiveness in terms of teacher-assessed 'school leadership', 'teacher cooperation and consensus', and 'school ethos' (n = 2073) was analyzed in relation to perceived teacher caring as reported by students (n = 8022). Two-level linear regression analyses showed that all three aspects of school effectiveness were predictive of higher levels of perceived teacher caring among students. The findings suggest that these features of school effectiveness constitute an important foundation for promoting the quality of teachers' relationships with their students.