海漆（学名：Excoecaria agallocha）为大戟科海漆属下的一个种。

Excoecaria agallocha, a mangrove species, belongs to the genus Excoecaria of the family Euphorbiaceae. It is common in mangrove swamps from India in the northwest to Australia in the southeast, within Australia, it thrives from northern New South Wales along the northern coastline around to Western Australia. Given such a wide range, it is understandable that the species has many common names including: Thillai, milky mangrove, blind-your-eye mangrove and river poison tree. Most of the names refer to its poisonous or blinding nature.