A successful lean implementation is the key for lean enterprise transformation. However, many companies are struggling to change the culture in their system and are having problems in adapting lean principles. In this article, we discuss whether lean standardization and professional lean certification (LS&C) has the potential to promote successful lean implementation leading to a lean enterprise transformation. For this purpose, we first analyzed the concepts of LS&C and reviewed the existing ones, including J4000 through literature review and personal communications with lean experts. We also conducted a survey among lean professionals to get feedback about their attitudes toward LS&C. The survey results suggest that there is significant support for LS&C, as around 60% of the survey attendants believe LS&C would eliminate problems in implementing lean principles. However, the awareness of existing standards among lean practitioners is very low, which indicates the need for development of new lean standards and/or better promotion. Our survey results also suggest that the level of support for lean standardization depends on many factors, including positions of the professionals and extent of companies’ lean experience.