This paper conceptualizes as well as theorizes how Professional Learning Communities (PLCs) demonstrate democratic principles using John Dewey's philosophy of education and democracy. The study reviewed the meaning of democracy and its characteristics and highlighted PLCs as social spaces for building democracy in schools. Also, the study explored whether a relationship existed between PLCs and democracy as ideally conceived. The reason behind this exploration was to ascertain whether the environment created in schools and the activities of teachers in their PLC groups serve as core components of establishing PLCs. The study revealed that the formation and implementation of PLCs truly illuminate democratic principles because all teachers take an active part in discussions and deliberations in matters affecting them; members remain committed to the course of the group and the school system because they feel as part; respect and tolerate the views of others, especially minority views and; take part in the decision-making process of the group. The nurturing of these ideals develops informed democratic citizens who would be capable of influencing local, state, and national level decisions and policies. These principles could also be passed on to their students.