Margalef () is a village in Catalonia, Spain. It is situated on the edge of Montsant and is a popular ecotourism destination, especially among rock climbers. It has a population of .
The rock type is conglomerate and it has more than 1500 climbing routes of different grades, from 4 to 9b+. Many of the buildings in the village are also built on conglomerate formations.
Margalef's important economic activity is agriculture, mainly producing olives, almonds, and fruits.