The Hundred of the Murray (later called Hundred of Murray) was a cadastral hundred in South Australia spanning land two miles either side of the navigable portion of the Murray River in the 1850s and 1860s. The hundred thus effectively prevented ordinary pastoral leases near the river from encroaching on the banks of the Murray from the mouth (at present-day Wellington) all the way to at least the present-day Waikerie crossing. The hundred overlaid the boundaries of the pre-existing cadastral counties of Russell, Sturt and Eyre.