As Henry Brooks Admans rightly said, “Teachers affect eternity; no one can tell where their influence stops”. Teachers are indeed one of the most important factors in developing the human resource of a nation. The present research was based on the dispositional approach to understanding job satisfaction and aimed at studying the job satisfaction and personality of primary school teachers. Job Satisfaction Survey (Spector, 1985) and NEO FFI (McCrae & Costa, 1978) were used for data collection. The sample was teachers, teaching classes pre-nursery to 3rd standard, from schools in Delhi (n1=57) and Rohtak (n2=47). The findings revealed that there is a significant positive correlation between job satisfaction and extraversion, agreeableness, and conscientiousness. Neuroticism had a significant negative correlation with job satisfaction, whereas openness to experience did not have any significant relationship. Using hierarchical regression analysis, a model was proposed that suggests 40% of the variance in job satisfaction is accounted for by the demographic variables, conscientiousness, and neuroticism.