Giammateo Asola (also spelled Gian Matteo, Giovanni Matteo; Asula, Asulae; 1532 or earlier – 1 October 1609) was an Italian composer of the late Renaissance. He was a prolific composer of sacred music, mostly in a conservative style, although he may have been one of the first composers to write a part for basso continuo.

He was born in Verona, and began studying at Alga in 1546 in the congregation of secular canons. While in Verona he most likely studied with Vicenzo Ruffo. In 1569 he became a secular parish priest, and in 1577 became maestro di cappella at Treviso Cathedral; however, in 1578 he went to Vicenza Cathedral to take the equivalent job there, where the pay and musical opportunities were greater. He only stayed there four years, going to Venice in 1582.  Except for a short return to Verona c. 1590–1591, he lived in Venice until his death, working at the church of S Severo.

Among his copious works are many masses, including a Requiem mass; psalm settings, lamentations, vespers, antiphons, sacrae cantiones, and numerous other sacred works.  He also composed secular music, including several books of madrigals, as well as one book of madrigali spirituali.