冠带鱼科又称冠棘鱼科，是辐鳍鱼纲月鱼目的其中一科。

冠带鱼科下分2个属，如下：

• 真冠带鱼属（Eumecichthys）
  • 真冠带鱼（Eumecichthys fiski）
• 冠带鱼属（Lophotus）
  • 凹鳍冠带鱼（Lophotus capellei）
  • 冠带鱼（Lophotus guntheri）
  • 拉氏冠带鱼（Lophotus lacepede）

Crestfishes, family Lophotidae, are lampriform fishes found in most oceans. It consists of two extant and one or two extinct genera.

They are elongated, ribbon-like fishes, silver in color, found in deep tropical and subtropical waters worldwide. Their scientific name is from Greek lophos meaning "crest" and refer to the crest (part of the dorsal fin) that emerges from the snout and head; this structure gives them their other name of unicorn fishes.