This study aimed to determine the predictive character of organizational socialization and occupational positive mental health on organizational commitment in higher education teachers. A sample of 279 teachers from higher education institutions who signed an informed consent form was used. Fifty-four point five percent of the participants were women, with a mean age of 44.05 years. The participants completed the Organizational Socialization Inventory, the Positive Occupational Mental Health Questionnaire and the Organizational Commitment Scale, and for data analysis descriptive statistics, correlation (...) analysis and multiple linear regression with stepwise method were applied, entering each dimension of organizational commitment separately as a dependent variable. As a result, moderate to weak correlations were identified between the study variables, and it was found that the final models indicate that the future perspectives and socio-affective dimensions predict affective commitment by 38%; that future perspectives, spirituality and age predict normative commitment by 22.8%; and that the future perspectives dimension predicts commitment of continuity by 9.2%. It is concluded that teachers’ expectations about their development in the institution, as well as their interactions at the socio-affective and spiritual level with the work context, are factors that partially influence their attachment to the educational organization. (shrink)