Aquarium lighting describes any type of artificial lighting that is used to illuminate an aquarium. Some types of aquaria such as reef aquariums and planted aquariums require specialized high-intensity lighting. To support photosynthetic life within the tank.

Freshwater aquarium lighting is commonly provided by screw-in incandescent bulbs, fluorescent tubes, and LED lamps. Freshwater planted aquariums require more specialized light sources.

High-intensity compact fluorescent bulbs, high output fluorescent bulbs or metal halide lamps are often used over such aquariums to encourage plant growth.