Northumberland is a masculine given name
- Name Meaning: 'King Henry IV, 1 and 2' Henry Percy, Earl of Northumberland. 'King Henry VI, Part Iii' Earl of Northumberland 'The Tragedy of Macbeth' Siward, Earl of Northumberland, English general, and Young Siward, his son. 'Richard II' Earl of Northumberland
- Name Origin: Shakespearean
Joan Ellis
| APA | Joan Ellis. (2011). northumberland. Retrieved September 27, 2026, from http://smartdefine.org/northumberland/definitions/1340756 |
| Chicago | Joan Ellis. 2011. "northumberland" http://smartdefine.org/northumberland/definitions/1340756 (accessed September 27, 2026). |
| Harvard | Joan Ellis 2011, northumberland, Smart Define, viewed 27 September, 2026, <http://smartdefine.org/northumberland/definitions/1340756>. |
| MLA | Joan Ellis. "northumberland" 25 February 2011. Web. 27 September 2026. <http://smartdefine.org/northumberland/definitions/1340756> |