双瓣茉莉（学名：Jasminum sambac，梵文：Mallika）为木犀科素馨属的植物，是一种高约1至3公尺的灌木。

双瓣茉莉的学名 sambac 从梵语 champaka 而来，原指木兰科含笑属的黄玉兰（Michelia champaca）。

中文中广义的茉莉花一词，常指木樨科素馨属（Jasminum）常绿灌木或藤本植物的统称。但人们平常俗称的茉莉花即指双瓣茉莉。

Jasminum sambac is a species of jasmine native to a small region in the eastern Himalayas in Bhutan and neighbouring India. It is cultivated in many places, especially across much of South and Southeast Asia. It is naturalised in many scattered locales: Mauritius, Madagascar, the Maldives, Cambodia, Java, Christmas Island, Chiapas, Central America, southern Florida, the Bahamas, Cuba, Hispaniola, Jamaica, Puerto Rico, and the Lesser Antilles.