山荆子（学名：Malus baccata）为蔷薇科苹果属的植物。

落叶乔木。叶片椭圆形或卵形，边缘有密锯齿。晚春开白色花，3-5朵集生在小枝顶端，花梗细长。红色或黄色的球形果实，果期9-10月。

Wild apple (lat.: Malus baccata) is an Asian species of apple known by the common names Siberian crab apple, Siberian crab, Manchurian crab apple and Chinese crab apple. In the forests across Europe, today also grow a few varieties of wild apples. It is native to much of northern Asia, but is also grown elsewhere as an ornamental tree and for rootstock. It is used for bonsai. It bears plentiful fragrant white flowers and edible red to yellow fruit of about 1 cm diameter.