Alexander Potebnja, Ukrainian linguist and philosopher (d. 1891)
Alexander Potebnja (Russian: Алекса́ндр Афана́сьевич Потебня́; Ukrainian: Олекса́ндр Опана́сович Потебня́) was a Russian Imperial and Ukrainian linguist, philosopher and panslavist, who was a professor of linguistics at the Imperial University of Kharkov. He is well known as a specialist in the evolution of Russian phonetics.

He constructed a theory of language and consciousness that later influenced the thinking of his countryman the Psychologist Lev Vygotsky. His main work was Language and Thought (Russian: Мысль и язык) (1862). He also published a number of works on Russian Grammar, on the History of the Sounds in the Russian Language and on Slavic folk poetry, furthermore he translated a short fragment of Homer's Odyssey into Ukrainian. Potebnja was a corresponding member of the St. Petersburg Academy of Sciences, the foremost academic institution in the Russian Empire.