Research concerns causality between FDI inflows and real GDP growth in ten countries: France, Germany, Japan, U.S., U.K., Brazil, China, India, Russia and South Africa during the period 1971-2012. The analysis is based on Granger-causality tests. The study is aimed at answering a question whether there is one way or two-way causality (or no causality at all) between FDI inflows and real GDP growth in G-5 and BRICS countries. According to the Granger-causality tests one-way causality occurs only in the case of Japan and India. Thus, Granger-causality between FDI inflows and real GDP growth seems to be a country-specific issue and any genral conlusions concerning developed or developing economies are not justified.