Considering that while there is currently an intense interest in program evaluation, actually it has been the object of few journal articles. We have chosen to develop one of the main issues in the field : the participation of stakeholders. The first part of the article allows the identification of two interrelated problems : the selection of participants and ways to involve them in the process. The second part is dedicated to the analysis of relevant articles which pose possible solutions. However, while it seems that participation of stakeholders is indeed required in order to give credibility to the evaluation process, such participation poses certain difficulties, leading to the conclusion that it, in itself, offers both solution and further problems.