月鱼科（学名Lampridae），是辐鳍鱼纲月鱼目的其中一科。科学家已经证实月鱼证属温血动物，是首种被证实的温血鱼类。

月鱼科仅有月鱼属一属，如下：

• 月鱼属（Lampris）
  • 月鱼（Lampris guttatus）：又称斑点月鱼。
  • 无斑月鱼（Lampris immaculatus）

Opahs (also commonly known as moonfish, sunfish (not to be confused with Molidae), kingfish, redfin ocean pan, and Jerusalem haddock) are large, colorful, deep-bodied pelagic lampriform fishes comprising the small family Lampridae (also spelled Lamprididae). Only two living species occur in a single genus: Lampris (from the Greek lamprid-, "brilliant" or "clear"). One species is found in tropical to temperate waters of most oceans, while the other is limited to a circumglobal distribution in the Southern Ocean, with the 34°S as its northern limit. Two additional species, one in the genus Lampris and the other in the monotypic Megalampris, are only known from fossil remains. The extinct family, Turkmenidae, from the Paleogene of Central Asia, is closely related, though much smaller.