多花紫藤（学名：Wisteria floribunda）为豆科紫藤属的植物。日本及中国各地有栽培，属中国原产的植物（非从国外引种）。

Wisteria floribunda (common name Japanese wisteria) is a species of flowering plant in the pea family Fabaceae, native to Japan. Growing to 9 m (30 ft), it is a woody, deciduous twining climber. It was brought from Japan to the United States in 1830's. Since then, it has become one of the most highly romanticized flowering garden plants. It is also a common subject for bonsai, along with Wisteria sinensis (Chinese wisteria).