* English: A possible origin is as a shortened form of the surname "Nall" or "Nallington," which are found in England, particularly in the West Midlands.
* Welsh: The Welsh name "Nall" could be a variant of "Nall" or "Nall" meaning "small."
* Scottish: "Nall" could be a variant of the Scottish surname "Nall," which is found in the Highlands.
* Irish: There's a possibility of it being a variant of the Irish surname "Nall," which is found in the County Donegal region.
Without further context or information about the specific person or family with the name "Nall," it's difficult to pinpoint a precise nationality.