Background/Purpose: In an increasingly competitive educational landscape, the school principal’s role has expanded beyond instructional leadership to include strategic marketing responsibilities. Yet the role of marketing in school leadership remains underexplored. Our objective was to investigate how Greek secondary school principals perceive marketing’s key dimensions (Customer Orientation, Competitor Orientation, and Inter-Functional Coordination) within schools, in comparison to other school staff members. Design/Methodology: A cross-sectional survey design was employed, collecting data using a structured questionnaire adapted from Oplatka and Hemsley-Brown. The sample comprised 350 respondents, including school principals and teaching staff. One-way ANOVA, supplemented by Games–Howell and Kruscall–Wallis tests, was employed to examine group differences across the three dimensions of market orientation. Results: Our findings indicate that principals demonstrate a higher level of Customer Orientation than other staff. However, no significant differences were found in Competitor Orientation or Inter-Functional Coordination across roles. Conclusions/Novelty: The findings suggest that while principals play a key role in aligning school functions and engaging with internal stakeholders, their sensitivity to external competition remains limited. The study highlights the evolving nature of school leadership while showing that marketing strategies in Greek schools are insufficiently implemented, calling for research into how leadership training can enhance market responsiveness.

The modern literature examines the debate concerning the influence of modern marketing services in schools. In this context, the need arises to evaluate how educational marketing finds resonance in secondary schools and how this is beneficial to the school community. This study examined the mediating role of educational marketing in schools, focusing on whether schools adopt its principles with consideration for the needs of students and parents and whether these efforts have been embraced by the entire school community. Data were collected from 350 teachers who work in public schools in Greece. t-tests were used to test the hypotheses under review. The results detected a strong relationship between modern marketing services and the educational process.