Illia Kostiantynovych Razumeiko[a] (born 18 August 1989) is a Ukrainian composer and member of Ukraine's Opera Aperta project.

Born in Zaporizhzhia, many of his best-known compositions are collaborations with fellow composer Roman Hryhoriv [uk].

[1] In 2010, Razumeiko co-founded the Porto-Franko festival with Roman Hryhoriv in Ivano-Frankivsk.

Bericht von musiktheoretischer Partizipation an drei künstlerischen Promotionsvorhaben (in German).

In: zgmth (Journal of the association of German-speaking Music Theory).