George Ion Diamandy or Diamandi, first name also Gheorghe or Georges (February 27, 1867 – December 27, 1917), was a Romanian politician, dramatist, social scientist, and archeologist. Although a rich landowner of aristocratic background, he was one of the pioneers of revolutionary socialism in France and Romania, obtaining international fame as founder of L'Ère Nouvelle magazine. He was an early affiliate of the Romanian Social-Democratic Workers' Party, but grew disenchanted with its radical policies, and, as a member of its "generous youth" faction, played a major part in dissolving it. With other members of this reformist group, he joined the National Liberal Party, serving as one of its representatives in Chamber.