Trans is a harp concerto written in 2015 by the Finnish composer Kaija Saariaho. The work was commissioned by the Suntory Foundation for Arts, the Finnish Radio Symphony Orchestra, the Swedish Radio Symphony Orchestra, Tonhalle-Orchester Zürich, Radio France, and the Frankfurt Radio Symphony. The world premiere was performed by the harpist Xavier de Maistre and the Tokyo Symphony Orchestra conducted by Ernest Martínez Izquierdo at Suntory Hall, Tokyo.