The Hoba meteorite is the largest known meteorite found on Earth, as well as the largest naturally-occurring mass of iron known to exist on the earth. The meteorite, named after the Hoba West Farm in Grootfontein, Namibia where it was discovered in 1920, has not been moved since it landed on Earth over 80,000 years ago.

The Hoba meteorite is a tabloid body of metal, measuring 2.7 by 2.7 meters (8 feet 9 inches) long and 0.9 meters (3 feet) high. Its mass in 1920 was estimated at 66 tonnes. Erosion, scientific sampling and vandalism took their toll and over the years the meteorite shrank to just over 60 tonnes. This led the Government of Namibia (then South West Africa) to declare the Hoba meteorite a National Monument in March 1955, in order to forestall further vandalism.