Sabin Manuilă (or Mănuilă; February 19, 1894 – November 20, 1964) was an Austro-Hungarian-born Romanian statistician, demographer and physician. A nationalist activist during World War I, he became noted for his pioneering research into the biostatistics of Transylvania and Banat regions, as well as a promoter of eugenics and social interventionism. As a bio- and geopolitician, Manuilă advocated the consolidation of Greater Romania through population exchanges, colonization, state-sponsored assimilation, or discriminatory policies.