皇带鱼科（学名：Regalecidae）是辐鳍鱼纲月鱼目的其中一科。

皇带鱼科下分2属3种，如下：

• 长体皇带鱼属（Agrostichthys）
  • 派氏长体皇带鱼（Agrostichthys parkeri）
• 皇带鱼属（Regalecus）
  • 皇带鱼（Regalecus glesne）
  • 勒氏皇带鱼（Regalecus russelii）

Oarfish are large, greatly elongated, pelagic lampriform fish belonging to the small family Regalecidae. Found in all temperate to tropical oceans yet rarely seen, the oarfish family contains four species in two genera. One of these, the giant oarfish (Regalecus glesne), is the longest bony fish alive, growing to up to 11 m (36 ft) in length. That is not enough to qualify as the longest fish, however, as some of the cartilaginous fish such as the basking shark and whale shark are even longer.