Reginald Clifford Kell (June 8, 1906 – August 5, 1981) was a British clarinettist. Born in York, England, Kell was the first prominent player to apply vibrato consciously and consistently to his tone, in which respect he modelled himself on his colleague the oboist Léon Goossens. Inspired by the great singers with whom he came in contact, notably Kirsten Flagstad, Kell sought to emulate their warm expressive sounds on the clarinet. His solo repertoire extended from Arcangelo Corelli and earlier to twentieth century works.