Yuriy Ruf (Ukrainian: Юрій Руф; real name was Юрій Романович Дадак; 26 September 1980 – 1 April 2022) was a Ukrainian poet, writer, scientist, public figure, and founder of a literary project "Дух Нації" ("Nation's spirit").

Born in 1980 in Ternopil region of Ukraine. His publications include "Багряна лірика" (2012), "Час Революції" (2014), and "На зламі епох" (2015). His poetry was also included in Ukrainian modern nationalist poetry compilations "Голос крові" (2013), and "Відлуння свинцевих громовиць" (2015).

Yuriy Ruf began writing poetry when he was 14 years old. He is known for his critical views toward traditional Ukrainian poetry where, according to him, Ukrainians are predominantly portrayed as poor and ill-fated. He believes such poetry lowers self-esteem and a sense of national pride. He, therefore, considers his poetry to be a type of poetic propaganda of patriotism. Fans describe his poetry as "front line lyrics", that is poetry of war and patriotism aimed at raising fighting spirit, delivering motivation, and a sense of national pride.

His most recent publication "На зламі епох" (2015) was dedicated to Ukrainian heroes of the current Russian-Ukrainian war, and contains verses honoring certain individuals, military units, Ukrainian soldiers, battles, and other wartime events.

He lived in Lviv, and was a father of two children. He was killed in the Russo-Ukrainian War in Luhansk Oblast.