Konstantin Sergeyevich Aksakov (Russian: ?????????´? ?????´???? ????´???) (10 April 1817, Novo-Aksakov, Orenburg Governorate – 19 December 1860, Zakynthos, US of the Ionian Islands) was a Russian critic and writer, one of the earliest and most notable Slavophiles.
He wrote plays, social criticism, and histories of the ancient Russian social order.
His father Sergey Aksakov and his sister Vera Aksakova were writers, and his younger brother, Ivan Aksakov, was a journalist.
Konstantin was the first to publish an analysis of Gogol's Dead Souls, comparing the Russian author with Homer (1842).
After Tsar Alexander II's accession to the throne, he sent him a letter advising to restore the zemsky sobor (1855).
Aksakov also penned a number of articles on Slavonic linguistics.