Giovanni Paolo Maggini (c. 1580 - c. 1630), was a luthier born in Botticino (Brescia), Republic of Venice.
Maggini was a pupil of the most important violin maker of the Brescian school, Gasparo da Salò.
But once established on his own around the year 1606, Maggini developed his skills and experimented with his designs until he achieved a level of expertise that is still highly regarded.
The only known pupil of Maggini is Valentino Siani, who worked with him c. 1610–1620, before he moved to Florence and started his own business.
Maggini succumbed to the Italian plague of 1629–31 that also took another important early luthier, Girolamo Amati.