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, a stockman is a person who looks after the livestock on a station, traditionally on horse. It has a similar meaning to "cowboy". A stockman may also be employed at an abattoir, feedlot, on a livestock export ship, or with a stock and station agency.