Generosity is one of the most admirable values in the world. Values have significant effects on the individual and organizational life. The aim of this paper is to introduce the concept of generosity in organization and give answer to 6 important questions (what, why, who, where, when & how) plus consequences of generosity in organization. The most important contribution of this paper is the typology of generosity based on different kind of giver/taker of generosity. To enrich the discussion both Islamic and scientific perspective is described. Because this is a pioneer work in Iran we hope those other scholars develop this new area of research in the future.