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In the organizational world, leaders or executives are highly influential, and managerial and leadership positions are one of the most important organizational professions. This subject is more important in public organizations due to key role of them in society. In this survey, researchers seek to provide appropriate leadership model for public organizations. Reviewing this subject, “lean leadership", which traditionally used in the industrial environment, can be considered as the basis for extracting the model of lean leadership in Public organizations. For this purpose, 23 in-depth, semi-structured interviews were conducted with the academics and executive (or simultaneous) and experts of the subject, by using targeted sampling method. Based on the key coding strategy, the open, axial, and selective coding steps were implemented, and by the effective and efficient use of Software (MAXQDA.PRO.2018.1), the axial category "government requirements”, “authenticity"  ,"strategies", "external influences" "intra-organizational actions" were extracted, which led to the consequences of this exploratory model in the context of the category of “lean leadership”. The two key findings of the research process include "descriptive exploratory model of lean leadership in Public organizations" and "extracting theoretical theorems”.