庭荠属（学名：Alyssum）是十字花科下的一个属，为一年、二年或多年生草本或半灌木状植物。该属共有约170种，分布于地中海及中东地区。

Alyssum is a genus of about 100–170 species of flowering plants in the family Brassicaceae, native to Europe, Asia, and northern Africa, with the highest species diversity in the Mediterranean region. The genus comprises annual and perennial herbaceous plants or (rarely) small shrubs, growing to 10–100 cm tall, with oblong-oval leaves and yellow or white flowers (pink to purple in a few species).