The Rainone Painter decorated vases in the red-figure technique in the Greek colonies in South Italy in the period from 375 to 350 B.C. Favoring Dionysiac and phlyax scenes, he tended to paint large vessels like kraters and amphorae. A distinguishing feature of the work of the Rainone Painter is the way he drew the youths that decorate the back of his vases. One youth often stands with a hand on his hip and his elbow jutting out, causing his cloak to wrap around his arm so that it almost looks like a sleeve. The early work of the painter is also marked by short bars of ornament under the scenes on the front and back of the vase. On later vases, these became bands of ornament encircling the vase.
As with most ancient artists, the real name of the Rainone Painter is unknown, and he is identified only by the stylistic traits of his work. Scholars named him after a phlyax vase in the private Rainone collection.