Oscar Grégoire Jr. (26 March 1877 – 28 September 1947) was a Belgian water polo player and backstrokeswimmer who competed in the 1900 Summer Olympics, in the 1908 Summer Olympics, and in the 1912 Summer Olympics.[1] He was part of the Belgian water polo team and was able to win two silver and one bronze medal. In 1908 and 1912 he also participated in the 100-metre backstroke events, but was eliminated in the first round in both.
