The goal of this study was to investigate the relationship between work ethic on organizational commitment of public boys' high schools' teachers in Tehran in 2015-2016. The research was descriptive according to its goal and correlation method was used, statistical population was selected from the public boys' high school teachers in Tehran. With multistage cluster random sampling, 384 teachers were selected with statistical sample size according to Krejcie and Morgan table. Data collection tools were work ethic questionnaire (Costa & Mac 1998) which contains 47 items and organizational commitment questionnaire (Allan & Meyer 1992) which contains 24 items with the reliability of 85% and 89% respectively. In order to analyze the data, descriptive statistics and to conclude the data Pearson correlation coefficient, Kolmogorov-Smirnov test and ANOVA were used. The results of the evaluations show that there is a Significant positive correlation among work ethic and teachers' organizational commitment in reliability level of 99% (error rate equal to 0.001) with correlation coefficient of 0.429; components of efficiency, discipline, conscientious, and attempt to succeed correlated more and components of continence and caution in decision-making correlated less. No significant difference was found in the relationship between work ethics in different regions of the study area.
