The fastest animal in the world is the peregrine falcon, which can reach diving speeds of over 300 km/h (190 mph), with recorded speeds up to 389 km/h (242 mph) during its hunting stoop (vertical dive). This makes it the fastest member of the animal kingdom overall

. For land animals, the fastest is the cheetah, capable of reaching speeds up to about 104 km/h (65 mph), with some estimates even closer to 113 km/h (70 mph). Cheetahs can accelerate from 0 to 97 km/h (60 mph) in less than three seconds, making them the fastest land mammal over short distances

. In summary:

• Fastest animal overall: Peregrine falcon (up to 389 km/h in a dive)
• Fastest land animal: Cheetah (up to 104–113 km/h in sprint)

Other fast animals include the Mexican free-tailed bat (up to 160 km/h in horizontal flight) and the black marlin (up to 129 km/h in swimming), but none surpass the peregrine falcon’s diving speed or the cheetah’s land speed