Abstract The last two decades have witnessed a surge in interest in research on organizational identification (OI). This paper presents a comprehensive meta-analysis of this research ( k = 96). Results indicate that (a) OI is correlated with a wide range of work-related attitudes, behaviors, and context variables, (b) OI is empirically distinct from its closest conceptual neighbor, attitudinal organizational commitment (AOC), and (c) the two most common OI measures (the Mael scale and the Organizational Identification Questionnaire) produce very different results. It is argued that OI scales, especially the Mael scale, may be preferable over AOC scales for studies aimed at explaining, and partly also for studies aimed at predicting, work behavior.