The purpose of this study was to examine school principals' perceptions of their roles as curriculum leaders in middle schools in the Atlanta metropolitan area. A questionnaire was developed by the researchers to explore the aspects of curriculum leadership in the areas of development, organization, implementation, evaluation and improvement. In data collection, a total of twenty-four school principals were invited to personal interviews with the researchers. Principals' responses during the interviews were categories by curriculum development, organization, implementation, evaluation, and improvement. The majority opinions of the principals were coded with the main themes emerged. As a result of data analyses, the findings of the study show that middle school principals perceived that they played a very significant role as curriculum leaders in the middle school level in the areas of curriculum development, organization, implementation, evaluation, and improvement with special attention to vertical alignment between the elementary schools and high schools.