千金藤（学名：Stephania japonica）为防己科千金藤属的植物。

藤本植物，无块根。卵形叶子，下面被白粉，盾状着生。夏秋开花，雌雄异株，伞形花序，再排列成复伞形聚伞花序腋生。朱红色球形核果。

Stephania japonica, known in Australia as the Snake Vine, is a common scrambler often seen in sheltered areas near the sea.