Denis Aleksandrovich Kornilov (Russian: Денис Александрович Корнилов; born 17 August 1986) is a Russian ski jumper who has competed at World Cup level since 2003.

Kornilov's best individual World Cup result is fifth in Bischofshofen on 6 January 2008, and in Sapporo on 3 February 2008.

His best team result is second in Oberstdorf on 15 February 2009.

Kornilov has competed at four Winter Olympics, with his individual result being 24th and his best team result being seventh, both in 2018.

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