Ilkka Aunu (b. 1993) is a Finnish composer, conductor and tenor.

Ilkka Aunu crafts music with a strong Finnish voice. His art is credited for mastering both classical rhetorics and inventions of contemporary music. Aunu wants his music to speak the stories of his native country, Finland, with all its joys and triumphs as well as sorrows and trials.

Aunu has studied composition and conducting in Sibelius Academy. His teachers in composition are Jaakko Kortesharju, Tapani Länsiö and Lauri Kilpiö. Aunu has studied conducting with Petri Komulainen and attended master classes with Jorma Panula, Atso Almila, Matti Hyökki, Carsten Seyer-Hansen, Jani Sivén and Seppo Murto.

His music has been performed in Finland, Canada, Sweden and USA by leading choirs, ensembles and orchestras including EMO Ensemble, Helsingin kamarikuoro, Tapiolan kuoro, Viipurin Lauluveikot, Kaartin soittokunta and Tapiola Sinfonietta. Aunu is artistic director of Helsinki based male voice choir Viipurin Lauluveikot and member of artistic council in the Finnish Male Choir Association.