2021 FINA World Swimming Championships (25 m) – Women's 800 metre freestyle

The 2021 FINA World Swimming Championships (25 m) – Women's 800 metre freestyle was a swimming event held as part of the 2021 FINA World Swimming Championships (25 m) in Abu Dhabi, United Arab Emirates. The competition took place in a 25-meter (short course) pool. This race is a grueling test of endurance, requiring swimmers to complete eight hundred meters in a continuous effort. The event features the world's top female long-distance freestyle swimmers competing for the title of world champion. The race is typically characterized by a strategic pacing approach, as swimmers need to manage their energy effectively throughout the considerable distance. Winning requires a combination of speed, endurance, and tactical awareness. Further details regarding specific results, competitors, and records achieved in this particular event would need to be sourced from official FINA records and event reports.