Critical cultural awareness (CCA) as an essential element of intercultural competence has attracted a myriad of scholars in the fields of language teaching, communication studies, cultural studies, gender studies, ethnic studies among others. That is why this study aims to investigate the attitudes of Iranian high school teachers and learners toward critical cultural awareness. The participants of the study included 307 teachers and 359 learners in different high schools in Qazvin. All the participants filled out the Critical Cultural Awareness Questionnaire. The data were then fed into SPSS software and were subjected to Principal Components Analysis. Three factors were extracted and named as CCA in ELT Programs, CCA in ELT Textbooks and Materials, and CCA in General Terms. The participants’ responses were analyzed based on these factors. The results of item analysis revealed that both teachers and learners indicated that all cultures should be equally addressed in ELT textbooks and materials. It was also concluded that the teachers' and learners’ awareness regarding the integration of culture into the mainstream teaching should be raised and they should put more emphasis on culture in their classes. One significant implication for EFL teachers and also syllabus designers is that an intercultural curriculum can enable learners to understand the target materials more efficiently.