This paper examined the impact of job satisfaction on organizational performance in telecommunication firms in Port Harcourt.The study used a survey research design and a population of one hundred and fifteen (115) management staff from four (4) telecommunication firms in Port Harcourt, Rivers State. The research using Taro Yamane sample size determination formula arrived at a sample size of eighty-eight which was adopted as the sample size and subsequently eighty-five (85) copies were retrieved and used for analysis.Pearson Product Moment Correlation Coefficient was used with the aid of Statistical Package for Social Sciences (Version 21). From the analysis of the study data, the result revealed that there is some level of job satisfaction among employees of the telecommunication firms and thattheir job satisfaction has apositive relationship with organizational performance in the telecommunication industry.As a result, the study indicated that work satisfaction is linked to organizational performance. Management of telecommunications enterprises should encourage employee involvement, teamwork, and an equal remuneration system, according to the study, to ensure development and productivity.