须鲸属（学名：Balaenoptera）是须鲸科2个属的其中之一，另一个则是大翅鲸属。须鲸属已知包括有8个不同的种，最新的一个种是2003年才确认的角岛鲸。

Balaenoptera, from the Latin balaena (whale) and pteron (fin), is a genus of Balaenopteridae, the rorquals, and contains eight extant species. The species Balaenoptera omurai was published in 2003. Balaenoptera is a diverse genus and comprises all but one of the extant species in its family - the other species is the humpback whale, Megaptera novaeangliae.