Konstantin Sellheim 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.

Katharina Sellheim is a German classical pianist, with a focus on chamber music and lied accompaniment. She has appeared in recitals internationally, collaborating with members of the Münchner Philharmoniker, and has been a lecturer at the Musikhochschule Hannover.