This article is an attempt to determine the optimal size of the general government sector (GGS) from the point of view of the economies of EU countries. Achievement of this research objective implied a few intermediate objectives. Firstly, measures enabling the description of the size of the general government sector were identified. In order to do that, measures present in the literature, classical measures of size of the GGS, as well as the public sector were extended to include additional measures proposed by the authors. Selected variables enabled us to measure the size of the GGS, choosing sector variables which positively influenced the economies of EU countries. Based on that, researches on optimization of the size of the general gov...