Moroccan black soap or beldi soap is a kind of soap originating in Morocco. It is a high-alkaline soap made from olive oil and macerated olives, which give it its gel-like consistency and characteristic dark greenish-black color.^[1]

In the hammams of Morocco, black soap is used for cleansing, moisturizing the skin, and exfoliating.^[2][3] A pinch of soap is rubbed onto wet skin. After 5–10 minutes a coarse fabric washcloth called a kessa is used to remove dead skin. The soap is high in Vitamin E. Moroccan black soap should not be confused with Sub-Saharan African black soap, as the ingredients and place of manufacture are quite different.^[1]