Vladislav Markovich Illich-Svitych (Russian: Владисла́в Ма́ркович И́ллич-Сви́тыч; born September 12, 1934, Kiev; died in an automobile accident August 22, 1966, near Moscow) was a linguist and accentologist, also a founding father of comparative Nostratic linguistics.
Of Polish-Jewish descent, he was born in Kiev but in 1941 moved with his parents to Chkalov and later to Moscow. His father, Mark Vladislavovich Illich-Svitych (1886—1963), worked as a bookkeeper; mother, Klara Moiseevna Desner (1901—1955) was chief director of puppet theater in Orenburg.
He resuscitated the long-forgotten Nostratic hypothesis, originally expounded by Holger Pedersen in 1903, and coined the modern term Nostratics. His death prevented him from completing the Comparative Dictionary of Nostratic Languages, but the ambitious work was continued by his colleagues, including Sergei Starostin and Vladimir Dybo.
- Nominal Accentuation in Baltic and Slavic, translated by R. L. Leed and R. F. Feldstein, Cambridge, London 1979: the MIT Press. (originally edited in Russian in 1963)
- Merritt Ruhlen: On the Origin of Languages. Studies in Linguistic Taxonomy. Stanford University Press 1994.
- Sydney M. Lamb and E. Douglas Mitchell (Hrsg.): Sprung from Some Common Source. Investigations into the Prehistory of Languages. Stanford University Press, Stanford (Calif.) 1991.
- Vitaly Shevoroshkin: Reconstructing Languages and Cultures. Abstracts and Materials from the First International Interdisciplinary Symposium on Language and Prehistory. Brockmeyer, Bochum 1989.
- Bomhard, Allan R. and John C. Kerns: The Nostratic Macrofamily. A Study in Distant Linguistic Relationship. Mouton De Gruyter. Berlin - New York 1994.
- Dolgopolsky, Aharon: The Nostratic Macrofamily and Linguistic Palaeontology. The McDonald Institute for Archaeological Research, Oxford 1998.
- Holger Pedersen: Türkische Lautgesetze. ZDMG 57, 1903.
- Holger Pedersen: Linguistic Science in the Nineteenth Century: Methods and Results. Harvard University Press, Cambridge (Mass.) 1931.