西鼹属（学名：Scapanus，海岸鼹），哺乳纲鼩鼱目鼹科的一属，而与西鼹属（海岸鼹）同科的动物尚有甘肃鼹属（甘肃鼹）、美洲鼹属（美洲鼹）等之数种哺乳动物。

Scapanus is a genus of moles in the family Talpidae. They live in North America from west of the Rockies south to Baja California del Norte, and north to British Columbia, wherever conditions permit a mole population; that is to say, apart from the most sandy, rocky, or developed places. As they are one genus, they are very closely related, but as species, they rarely if ever interbreed successfully.