鲭鲨属（学名Isurus）是鼠鲨科下的一属鲨鱼。

鲭鲨属较其他的鲨鱼有较高的智能，但现时对牠们所知有限。大部份鲨鱼都有瞬膜保护眼睛，避免在追捕猎物时受到攻击，例如大青鲨会在与对象碰撞时会将瞬膜滑动，但鲭鲨属在牠们认为没有危害时，会略过这动本能。

Isurus is a genus of mackerel sharks in the family Lamnidae, commonly known as the mako sharks.

The two living species are the common shortfin mako shark (I. oxyrinchus) and the rare longfin mako shark (I. paucus). They range in length from 2.5 to 4.5 m (8.2 to 14.8 ft), and have an approximate maximum weight of 800 kg (1,800 lb).