Reuben Jelleyman is a composer and acoustician from Auckland, New Zealand.

His works have been played by ensembles such as Ensemble InterContemporain and Multilatérale (France), Avanti! (Finland), Schallfeld (Austria), Ensemble Fractales (Belgium), Stroma (NZ), NZTrio, the New Zealand Symphony Orchestra, and numerous soloists.

He was awarded the SOUNZ Contemporary Award in 2022 and the New Zealand Arts Foundation Springboard Award 2021. His music has been recorded numerous times, including the Aotearoa Music Award-winning album 11 Frames.

Reuben is a graduate from the New Zealand School of Music and Victoria University of Wellington in music and physics, completing his bachelor composition studies under Michael Norris and Dugal McKinnon. He completed a Masters degree in composition under Gérard Pesson at the Paris Conservatoire in 2021.

Jelleyman is the creator and director of PORTALS, a contemporary music in various alternative concert settings.