日本紫珠（学名：Callicarpa japonica）是马鞭草科紫珠属的植物。别名紫珠，日本名为紫式部。

落叶直立灌木。狭倒卵形至卵状椭圆形的叶子对生，变异大，上半部边缘有粗锯齿，两面通常无毛；聚伞花序腋生，秋季开白色花；紫色小球形果实。

Japanese Beautyberry (Callicarpa japonica) is a tree with purple berry fruits. The flowers can range from pink to white. This species is native to China, Japan, Korea, Ryukyu Islands, and ******. It is cultivated as an ornamental tree, and it is very popular in gardens and parks.