Nimrod was the ship used by Ernest Shackleton in his 1908 Antarctic expedition for the South Pole. It was a 41-year-old schooner which had been used to hunt seals. Shackleton, who paid £5,000 for the ship, had it re-rigged as a barkentine. It also had a steam engine, but had a top speed of only six knots under this power.
A number of geographic features of Antarctica were named after this ship, including Nimrod Glacier.
