The intention of this paper is to present the concept of knowledge sharing practices among faculty members in academic institutions through the theory of planned behavior (TPB). This paper examines survey results collected on academician's knowledge sharing. A theory of planned behavior is used as a source model to develop two models: one with the causal path from subjective norms to attitude and the other with a causal path from subjective norms to perceived behavioral control. From the results of the significance of the subjective norms to the attitude path, it is possible to conclude that there is a similarity in faculty attitude toward knowledge sharing and what they feel about knowledge sharing due to social pressure. Similarly, the casual path created from subjective norms to perceived behavioral control reveals that the academician's behavior in knowledge sharing depends upon his/her feelings about the views of others. Further analysis of the three models resulted in the emergence of a new model.