This chapter gives brief synopses of business communication theories which highlight the communicative nature and architecture of culture. These diverse theories emphasize the intersection between cultural communication and meaning as well as its impact on organizational/community members. Our definition of culture refers to mutual norms, beliefs, values, and behaviors that prevail within a given community. All of these attributes are captured in messages, symbols, rituals, and behaviors which are shared among organizational/community members. Equally important, many of these theories underscore the dynamic nature of culture. This chapter also raises important scholarly questions. Can and should the field of business communication attain consensus on the definition of culture? How can researchers more effectively measure both culture and subcultures? And, how can theories in this category be fruitfully partnered with complimentary groups such as channels and barriers, flows and patterns, and organizational structures to fine-tune our cultural knowledge?