The invention relates to a water-repellent layer and a fuel cell. An object is to suppress elution of a hydrogen peroxide decomposition catalyst from the water-repellent layer. The water-repellent layer for the fuel cell contains a water-repellent component and a hydrogen peroxide decomposition catalyst. A mass ratio of the hydrogen peroxide decomposition catalyst to the water-repellent component is between 5 mass percent and 20 mass percent, inclusive.