Gheorghe Gruia Marinescu (October 2, 1940 – December 9, 2015) was a Romanian handball player, coach and sports official. Born in Bucharest, Gruia won the gold medal in the 1964 World Handball Championship and the 1970 World Championship. In the 1972 Summer Olympics he won the bronze medal with the Romanian team and become the top scorer of the competition with 37 goals. He played as a right back and spent his entire professional career with Steaua Bucharest.