Cactus is a Luxembourg supermarket company. The family-run business has stores under the brands Cactus, Supercactus, Cactus marché (Cactus Market) and CactusShoppi. The group also operates speciality shops selling items such as flowers or CDs. As of July 2017, Cactus is Luxembourg’s fourth largest employer.

The company logo is a three fingered cactus of green on a white background or sometimes reversed on a green background.