This article looks at competitiveness from a regional perspective (NUTS-2). After the establishment of indicators for regional competitiveness in Poland, social and intellectual capital, the relations among the three were analysed for the 16 Polish regions using 2SLS. GDP per head is positively affected by the level of competitiveness. It was found that an increase in competitiveness by 1% increased the GDP per head by 0.53%.The analysis done here showed that there was not a significant correlation between the presence of social capital and regional competitiveness. However, intellectual capital had a highly significant impact on competitiveness: an increase in intellectual capital by 1% would increase competitiveness by 0.47%.