Communication studies is an academic field that deals with processes of human communication, commonly defined as the sharing of symbols to create meaning. The discipline encompasses a range of topics, from face-to-face conversation to mass media outlets such as television broadcasting. Communication studies also examines how messages are interpreted through the political, cultural, economic, and social dimensions of their contexts.

Communication is institutionalized under many different names at different universities, including "communication", "communication studies", "speech communication", "rhetorical studies", "communications science", "media studies", "communication arts", "mass communication", "media ecology," and "communication and media science."

Communication studies integrates aspects of both social sciences and the humanities. As a social science, the discipline often overlaps with sociology, psychology, anthropology, biology, political science, economics, and public policy, among others. From a humanities perspective, communication is concerned with rhetoric and persuasion (traditional graduate programs in communication studies trace their history to the rhetoricians of Ancient Greece). The field applies to outside disciplines as well, including engineering, architecture, mathematics, and information science.