The aim of this research is to study relations between organizational stress and organizational commitment of middle level managers. Questionnaires conducted on 97 middle level managers employed in five stars group hotel administrations in Antalya. Frequency tables were arranged; analysis of reliability (Cronbach's Alpha), factor and Pearson correlation and one-way anova, and t test were used in order to evaluate the data. According to consequences of factor analysis, four organizational commitment factors emerged (affective commitment, continuance commitment-lack of alternatives, continuance commitment-investments/side bets, and normative commitment). Correlations between organizational stress and organizational commitment, and organizational commitment's factors were tested by Pearson correlation analysis. Consequently, significant negative correlation between organizational stress and affective commitment, and between organizational stress and normative commitment were determined. Accordingly, as organizational stress decreases, affective commitment and normative commitment increases.