Konstantin Sellheim (born 1978) is a German classical violist, who has appeared internationally with a focus on chamber music.

He is a violist of the Münchner Philharmoniker, and lecturer of viola at the Universität der Künste Berlin.

[2] They recorded a CD, Fantasy, of works by Robert Schumann, Paul Hindemith and Rebecca Clarke.

[4] Sellheim also played chamber music with Giora Feidman, Igor Levit and Michael Schade, among others.

[2] Sellheim created new music, playing for example in 2014 in a concert at the Gasteig in Munich the premiere of the piano quartet Skylla and Charybdis by Graham Waterhouse, along with the composer's Sonata ebraica and Beethoven's Piano Quartet in C major, WoO 36/3, with his sister, the violinist David Frühwirth and the composer.