Mikołaj Rudnicki - (born 6 December 1881 in Sokołów Podlaski - died 28 June 1978 in Puszczykowo) was a Polish linguist. He finished his studies in Kraków. In 1911 he became a docent in Indoeuropean linguistics. In 1919 he became a professor at Uniwersytet Poznański. From 1945 he was a member of the Polish Academy of Learning. He published many works on psycho-phonetic issues: