金钱鱼（学名：Scatophagus argus）为辐鳍鱼纲鲈形目刺尾鱼亚目金钱鱼科的其中一种，俗名金鼓。

本鱼分布于印度太平洋区，包括红海、波斯湾、阿曼湾、伊朗、斯里兰卡、孟加拉、巴基斯坦、印度、柬埔寨、日本、韩国、中国、**、越南、泰国、新加坡、马来西亚、菲律宾、巴布亚新几内亚、澳洲、密克罗尼西亚、帕劳、斐济、东加、法属波里尼西亚、萨摩亚群岛。该物种的模式产地在印度。

Scatophagus argus, a fish in the scat family (Scatophagidae), occurs in two basic color morphs which are called green scat and ruby or red scat. As a whole, the species is called common or spotted scat. This fish is generally distributed around the Indo-Pacific region, to Japan, New Guinea, and southeastern Australia. They live in coastal muddy areas, including estuaries, mangroves, harbours, and the lower courses of rivers. They are popular aquarium fish.