Area of the StudyThis study attempts to identify the relationship between emotional labour and job satisfaction of senior teachers in selected International Schools in Colombo district, Sri Lanka.Problem of the StudyThere is an empirical knowledge gap in Sri Lankan context on the relationship between emotional labour and job satisfaction of International School teachers. This study is aimed to investigate the relationship between emotional labour and job satisfaction of senior teachers in selected International Schools in Colombo district, Sri Lanka.Method of the StudyThe data were collected from a randomly selected sample of 120 senior teachers in selected three International Schools in Colombo district in Sri Lanka by administering a structured questionnaire, which consisted of 32 questions/statements with 5 point scale. The data analyses included the univariate and bivariate analyses.Findings of the StudyThis study found that there is a weak negative relationship between surface acting and job satisfaction and a moderate strong positive relationship between deep acting and job satisfaction of senior teachers in the selected three International Schools.Conclusion of the StudyIt is concluded that the surface acting is negatively associated with job satisfaction while deep acting is positively associated with job satisfaction of senior teachers in International Schools. Thus, it is advisable for Teacher Training Institutes to give a better understanding of these emotional demands and different strategies in teacher training programmes to enhance job satisfaction and teaching effectiveness.Keywords: Surface Acting, Deep Acting, Emotional Labour, Job Satisfaction, International School Teachers