Ghiță Moscu (born Gelbert or Gelber Moscovici, also known as Alexandru Bădulescu, Russian: Александр Саимович Бадулеску; 1889 – November 4, 1937) was a Romanian socialist and communist activist, one of the early leaders of the Romanian Communist Party and its permanent delegate to the Third International.
He was born in a Jewish family in Băiceni, near Iași, in north-eastern Romania. He was the son of an immigrant petty merchant who had fought in the Romanian Independence War. A student of the Iaşi superior school of commerce until 1910, in 1906 Moscu joined the local socialist România Muncitoare circle, where his older brother, Ilie, a future leader of the reformist Romanian Social Democratic Party, was already active. Involved in the youth section, he contributed to the creation of the Circle for the Socialist Education of the Youth, which included young workers as well as school students. Moscu represented the socialists of Paşcani at the 1910 Congress reorganizing the Social Democratic Party of Romania, before being drafted in the autumn of the same year, and participating as a soldier in the Second Balkan War. After demobilization, he moved to Bucharest, where he started working for an insurance company and joined the local socialist section. During the years before the First World War, Moscu was engaged in the pacifist anti-war movement, writing articles in the socialist youth press. In 1915, at the fourth Congress, where he participated as a delegate for Bucharest, Moscu was elected in the party's control commission. In August 1915 he was also elected in the Committee of the newly created commercial employees’ trade union. Other political position held during this period include membership in the local Trade Union Commission, the Bucharest Party Committee and the Commission for the ideological control of the party's press.