Abstract:The purpose of this paper is to estimate technical and cost efficiencies of public universities in Turkey between 2005 and 2010 by the means of non-parametric technique named as Data Envelopment Analysis (DEA). In doing so, overall efficiencies of HEIs are computed on the basis of certain production and cost models motivated by different sets of input/output. The results of those models, firstly, have shown that majority of public HEIs in Turkey are performing at unsatisfactory levels although some of them are doing fairly well. Besides after employing bootstrapping procedures, results indicated that efficiency scores are significantly diverging between best and worst performing institutions. Secondly, even though there is not any systemic improvement during this five-year time span, overall efficiencies of public HEIs in Turkey had gone up at the course of 2008-2009 and 2009-2010 academic years. Thirdly, the share of full-time academic staff in the whole faculty and having a medical school are found as the determinants of inefficiencies among HEIs regarding to the estimates of Tobit regression analysis. Consequently, even though those findings might have methodological limitations concerning the DEA, results of the study are recommended to be used as the departure points both for academic and policy-making interests.