This article introduces the concept of the dark side of cultural heritage protection. It points out how the many and mostly honorable efforts to protect cultural heritage against the harms of war and conflict sometimes contribute to make cultural heritage vulnerable or even to cause its destruction. The more we talk about cultural heritage and its value and the importance of protecting it, the more interesting it becomes for some groups to target it. This article argues that states, international organizations, and the heritage community need to recognize these negative side effects and make sure to consider them in future action.