The subject discussed in this research work is extracted from the field of Business Administration and focuses on the impact of communication in an organization in a particular company, Nigeria Coca-Cola Company, Onitsha Anambra State. The essence of this research is to critically examine and analyze the various facts of communication and at the same time point out its effectiveness. These research works focuses with the importance of communication. It also concerned with the effective of communication, it deals with the literature review of the project work, designs and methodology, presentations and analysis of data and the testing of hypothesis and with findings, conclusion, and recommendations. At this juncture, I sincerely hope and believe therefore, that this research work will go a long way in helping to improve the general performance of public and private undertaking particularly Nigeria Coca-Cola Company. Some of the findings include; the level of organization efficiency in the Nigeria Coca-Cola Company, Onitsha is high, the need communication was perceived as high in the Nigeria Coca-Cola Company, Onitsha. The recommendations made among other are communication has been established to be one of the major systems, which helps to achieve organizational goals and oral communication is almost the most popular method of communication in the organization. This should be promoted as it can lead to maximum efficiency in the organization