Knowledge sharing is an activity through which knowledge (namely, information, skills, or expertise) is exchanged among people, friends, peers, families, and communities (for example, Wikipedia), or within or between organizations. It bridges the individual and organizational knowledge, improving the absorptive and innovation capacity and thus leading to the sustained competitive advantage of companies as well as individuals. Knowledge sharing is part of the Knowledge management process.

Organizations have recognized that knowledge constitutes a valuable intangible asset for creating and sustaining competitive advantages. The sharing of knowledge constitutes a major challenge in the field of knowledge management because some employees tend to resist sharing their knowledge with the rest of the organization.