Th e aim of the study was to determine the level of ethical manifestations in trainers of teacher continuing education and to compare trainers' self-evaluations with their evaluations by teachers. Th e same was measured also in trainers of other adult professional training and participants of that type of education. Research involved 262 participants, and ethical competencies were measured using the Questionnaire of Trainers' Ethical-Humanistic Manifestations by Pavlov and Skúpa (2018). It was found out that the overall level of ethical competencies was high above-average and comparable in both groups of trainers. Trainers of teacher continuing education statistically signifi cantly overestimated themselves in comparison with how teachers perceived them as participants of the continuing professional development. A similar phenomenon was observed also in trainers of other professional training, although less signifi cant. From the point of view of trainees, trainers of teacher continuing development were evaluated in some measured aspects worse than trainers of other professional training.