Aurel Constantin Popovici (16 October 1863 – 9 February 1917) was an ethnic Romanian Austro-Hungarian lawyer and politician.

He was born in Lugos, Kingdom of Hungary, Austrian Empire (today Lugoj, Romania).

The son of an artisan, Constantin Popovici, and his wife Maria, he completed primary and secondary education and studied at the Hungarian Gymnasium in Lugoj (Lugos) (1873–1880), and then at the Romanian Lyceum in Beiuș (Belényes) (1880–1884).

[2] In 1906, in his book, he proposed the federalization of the Austro-Hungarian monarchy into the so-called United States of Greater Austria.

After Romania's entrance into World War I in 1916, he moved to Geneva, Switzerland, and died there in 1917.