Sir Sidney Kidman, known as Sid Kidman and popularly named "the Cattle King", was an Australian pastoralist and entrepreneur who owned or co-owned large areas of land in Australia in his lifetime.

In Australia and New Zealand, a cattle station is a large farm, the main activity of which is the rearing of cattle. The owner of a cattle station is called a grazier. The largest cattle station in the world is Anna Creek Station in South Australia, which covers an area of 23,677 square kilometres.