The objective of this research is to demonstrate the influence of organizational communication on knowledge management in postgraduate teachers in Northern Lima universities, in the context of COVID-19, for this purpose a quantitative approach was proposed; analyzing statistical data, explanatory level; arguing the impact of one variable on the other, non- experimental, transactional, and correlational. Two questionnaires were applied to a sample of 112 postgraduate teachers, which have reliability according to Cronbach's analysis more than 0.8, whose Cox and Snell results of .590 and Nagelkerke equal to .676, revealed that the organizational communication variable influences probabilistically between 59.0% and 67.6% in knowledge management. The most representative findings agree that communication has a humanistic approach due to the high interaction and trust that it generates among collaborators and that confinement has been a barrier to the transmission of knowledge, therefore, it is concluded that the creation, storage, transmission, and application of knowledge has been significantly affected by limited communication in this pandemic time.