Establishing criteria for knowledge management (KM) is important, because criteria help to establish a basis for assessing the value and evaluating its results. More importantly, the criteria will tell us what the KM outcomes are and their relevance to organizational performance. The literature review has revealed that widely accepted criteria and performance measures have not been developed for KM. Delphi Technique and survey-based research using a questionnaire targeting KM professionals as respondents were aimed at establishing criteria for assessing KM success for different types of organizations. The results show what organizations consider important outcomes of a KM initiative. Contributions from this research effort should support government, nonprofit, and for-profit organizations in making decisions about KM initiatives and measuring KM efforts in terms of its relevance to the performance of organizations. Future research efforts can focus on developing these KM outcomes into detailed measures.