Grigore Iunian (September 30, 1882 – 1939) was a Romanian left-wing politician and lawyer. A member of the National Liberal Party (PNL) during the 1910s, he rallied with the Peasants' Party (PȚ) after World War I, and followed it into the National Peasants' Party (PNȚ), before leaving in 1933 to create the Radical Peasants' Party (PȚR), over which he presided until his death.