The Otago pack saddle, later known as the British universal pack saddle, is a rideable pack saddle devised by Harvey Spiller in Otago, New Zealand, in 1863, to prevent ruinous injuries to horses carrying heavy loads. It was improved and adopted for military use by the during the New Zealand wars of 1863–1867 and the Abyssinian expedition of 1867–1868, to become a preferred military general use type also favoured by expeditioners. Apart from horses, it worked well on mules and bullocks when adapted to them.