Foreign direct investment is an important topic in economic research. FDI occurs when a firm invests in a foreign country. The purpose of this thesis is to empirically analyze the effects of FDI on the economic growth of the selected sample of twenty-one OECD countries. The thesis is based on a theoretical model of cross-country regressions and a panel data technique methodology was followed. The results of the time-period 1998-2017, show a direct positive impact of FDI on GDP per capita growth, namely economic growth. Moreover, it was found a lack of complementarity between FDI inflows and human capital, and a negative dependency between FDI inflows and institutions such as private sector credit.