Allenby is of English origin, meaning "from the white hill" or "from the bright meadow". It is an uncommon given name and a rare surname. The name Allenby is derived from Old English elements 'ælen' meaning noble or brave, and 'by' which refers to settlement or farm. The name gained some recognition through Field Marshal Edmund Allenby, who commanded the Egyptian Expeditionary Force during World War I. He was known for his victories in the Sinai and Palestine Campaigns, including the Battle of Megiddo.
"Allenby saw six births in its debut year of 1918."