Stefan Frommelt (* 1966) is a pianist, composer, arranger und music teacher from Liechtenstein.
He studied at Musikhochschule Wien (graduation 1992),Hochschule Luzern (Performing, Composing, Arranging, Diplom 2000) und in Numerus master classes, including work with Simon Nabatov, Uli Rennert, Art Lande and Uli Scherer.
He is the founder and bandleader of many ensembles, such as the award-winning Jazzzirkus. As a sideman he worked with Sandy Patton, Marianne Racine, Carlo Lorenzi, Herbert Walser, Alfred Vogel, the Big Band Liechtenstein and many more. Stefan Frommelt was the artistic director for the Art & Music Company in Bern from 1993 to 1998 and for the TAK Liechtenstein in 2004 and 2006.