Ace Combat 3: Electrosphere is a combat flight simulation video game developed by Namco for the PlayStation. The third game in the Ace Combat franchise, it was released in Europe and North America in 2000 and was localized for specific regions.

Players control an aircraft and must complete various mission objectives, such as destroying squadrons of enemies or protecting a base from enemy fire. Electrosphere carries a more futuristic science fiction-inspired landscape and world compared to the modern-day theme of its predecessors.

The international version of Ace Combat 3 differs significantly from the japanese release: its campaign has 36 out of the original 52 missions with no different paths. The story, as well as all related voice acting and cutscenes, was removed and replaced with a more basic story with no voice acting.