角岛鲸（学名：Balaenoptera omurai），属须鲸科，直到2003年才被确认与命名。

因为模式标本是搁浅在日本山口县的角岛，故俗名「角岛鲸」。它的学名omurai则是为了纪念日本的鲸豚学者大村秀雄。

成年角岛鲸身长可达11公尺，属中型鲸，外型极似长须鲸，但较长须鲸（体达可达26公尺）小很多。

已知分布海域为西太平洋地区，标本来自日本、**、菲律宾、澳洲与所罗门群岛。**的角岛鲸标本，目前绝大多数保存于台中市的国立自然科学博物馆。

Omura's whale or the dwarf fin whale (Balaenoptera omurai) is a species of rorqual about which very little is known. Before its formal description, it was referred to as a small, "dwarf" or "pygmy" form of Bryde's whale by various sources. The common name and specific epithet commemorates Japanese cetologist Hideo Omura.