亚马逊河豚（又作亚马逊淡水豚、亚马逊江豚或粉红河豚、粉红淡水豚，英文俗称boto，学名Inia geoffrensis）是亚马逊河及奥里诺科河流域特有的物种，是体形最大的淡水豚。

在世界自然保护联盟名录中又以Amazon Dolphin, Boto Vermelho, Boto Cor-de-Rosa, Bouto, Bufeo, Dauphin de l'Amazone, Inia, Pink Dolphin, Pink Freshwater Dolphin, Pink Porpoise, and Tonina等别名来指称该物种。

The Amazon river dolphin (Inia geoffrensis), also known as the Boto or pink river dolphin, is a species of toothed whale classified in the family Iniidae. Three subspecies are currently recognized: I. g. geoffrensis (Amazon river dolphin), I. g. boliviensis (Bolivian river dolphin) and I. g. humboldtiana (Orinoco river dolphin). The three subspecies are distributed in the Amazon basin, the upper Madeira River in Bolivia, and the Orinoco basin, respectively.