This study was a survey type research that aims at determining the levels of compliance with professional ethics by physical education staff who work at high schools. Participants were 465 physical education teachers and 398 high school principals. In this study, the measure of "professional ethics of physical education teachers" developed by the researcher based on the relevant literature was applied. Results showed that, while the physical education teachers stated that they followed professional ethics in the dimensions of professionalism, responsibility, honesty and respect at high levels, the principals stated that they followed professional ethics at lower levels. Male and female physical education teachers have indicated to comply with the ethics codes concerning respect, at different levels. The principals whose branches are social science or natural sciences and the principals who belong to younger and older groups think in a different way about physical education teachers' complying with professional ethics codes in the dimension of respect. (Contains 5 tables.)