剑吻鲨（学名：Scapanorhynchus）是一属面临灭绝的鲨鱼，生活于白垩纪时代。牠们的外观与现存的欧氏尖吻鲛非常相似，故有学者将欧氏尖吻鲛重新分类在剑吻鲨属中。但是，大部份的鲨鱼专家均认为牠们有足够的分别来成立另一属。

剑吻鲨有一扁长的吻，锋利及锥状的牙齿，非常适合来捕捉鱼类或撕开猎物。

Scapanorhynchus ("Spade Snout") is an extinct genus of shark from the Cretaceous period. Their extreme similarities to the living goblin shark, Mitsukurina owstoni, lead some experts to consider reclassifying it as Scapanorhynchus owstoni. However, most shark specialists regard the goblin shark to be distinct enough from its prehistoric relatives to merit placement in its own genus.