Kondraty Fyodorovich Ryleyev, also spelled Kondraty Feodorovich Ryleev (Russian: ??????´??? ????????? ????´??, September 29 (September 18 O.S.), 1795 – July 25 (July 13 O.S.), 1826) was a Russian poet, publisher, and a leader of the Decembrist Revolt, which attempted to overthrow the Russian monarchy in 1825.