A tabun, or taboon (in Belarusian, Russian, and Ukrainian: , herd), is an extensive breeding system for horses, under the supervision of herder horsemen, known as tabuntshik. (Russian: , composed of with a suffix derived from Turkic languages ). Tabuns can be extremely large, comprising up to 200 horses.
The tabun may refer to a herd of wild horses. By extension, the term tabun also applies to the enclosure where the horses are kept.
The size of the herd has several meanings: it can refer to a large herd of horses, sometimes reaching up to 40,000, but the term is also used by the Kazakhs to describe a group of 8 to 10 horses managed in a semi-wild state