北极花属（学名：Linnaea）是忍冬科下的一个属，为常绿、蔓状亚灌木植物。该属共有20种，分布于北半球高寒地带。

Linnaea is a plant genus which has often been classified in the family Caprifoliaceae (the Honeysuckle family) but may be more accurately considered to belong to its own family, Linnaeaceae. The genus includes a single, generally boreal to subarctic woodland subshrub species, Linnaea borealis, commonly known as twinflower (sometimes written twin flower).