This paper attempts to examine the influence of supervisory support on job involvement of government school teachers. The paper also aims to measure the level of job involvement among school teachers and examines the difference in their job involvement with respect to demographic variables. Data were obtained from 211 government school teachers of Amritsar. The posited hypotheses were tested using regression analysis, descriptive statistics, and ANOVA. Results revealed that supervisory support has a significant positive influence on job involvement of government school teachers. In contrary to the common perception about teachers in government schools, the study found that these teachers have quite high level of job involvement. Further, the study asserted that significant difference exists in job involvement of school teachers with respect to demographic variables namely, gender, age, and experience whereas insignificant difference was observed with respect to marital status, income, and educational qualification. Findings of this study will be beneficial for the policy and decision-makers in school organizations for enhancing job involvement of teachers.