This study aimed to determine the Global Citizenship Education (GCED) awareness level of teachers of different subjects in Jordan and to investigate whether their global citizenship awareness levels varied in terms of different demographic variables. The sample comprised 4305 teachers. Data were gathered using an awareness scale and an interview. Findings revealed that teachers showed an unsatisfactory level of awareness of GCED; females were more aware of GCED. Based on the results, it is recommended that teachers' knowledge should be fostered in teaching GCED concepts, skills, and values, and to transcend the teacher-centered approach as it doesn't promote the outcomes of creating global citizens.