Giovanni da Cascia, also Jovannes de Cascia, Johannes de Florentia, Maestro Giovanni da Firenze, was an Italian composer of the medieval era, active in the middle of the fourteenth century.
It was once thought that he held a post at Florence Cathedral, but this is no longer accepted.
He tends to use extended melismas on the first and penultimate syllables of a poetic line, and sometimes introduces hockets at these points.
Several of his works survive in quite different versions; this is evidence that improvisation was still an important aspect of musical performance up to this time.
Giovanni's works tend not to be tonally unified; they begin and end on different notes, and in some cases, such as Nascoso el viso, each poetic line begins and ends on different notes.