扁鲨（学名Squatina squatina）是扁鲨科下的一种鲨鱼，曾一度广布在大西洋东北部的海岸水域。它们的身体扁平，胸鳍及臀鳍也很阔，可以将自己伪装成为海床的一部份。它们的特征是有圆锥状的触须，背上没有刺及呈灰色或褐色，有一些深浅色的斑纹。它们可以长达2.4米。

扁鲨是夜间活动的，会将自己隐藏在沉积中埋伏猎物。它们主要吃底栖区的硬骨鱼、鳐科及无脊椎动物。它们是无胎盘胎生的，雌鲨每隔一年会生7至25条幼鲨。它们并不怎么带有攻击性，但若受到骚扰，则会很快的咬对方。扁鲨早至古希腊时就已经被渔猎作为食物，并被当作安康鱼卖到欧洲。自20世纪中茱，频繁的渔业令它们的数量大减，现已从北部灭绝。余下的群落也因繁殖率低而面临威胁。国际自然保护联盟故此将它们列为极危。

Squatina squatina, the angelshark or monkfish, is a species of shark in the family Squatinidae (known generally also as angel sharks), once widespread in the coastal waters of the northeastern Atlantic Ocean. Well-adapted for camouflaging itself on the sea floor, the angelshark has a flattened form with enlarged pectoral and pelvic fins, giving it a superficial resemblance to a ray. This species can be identified by its broad and stout body, conical barbels, thornless back (in larger individuals), and grayish or brownish dorsal coloration with a pattern of numerous small light and dark markings (that is more vivid in juveniles). It measures up to 2.4 m (7.9 ft) long.