Category:Members of the Parliament of the United Kingdom for County Down constituencies (1801–1922)

Constituencies:
 * Down (1801–85)
 * East Down (1885–1922)
 * Mid Down (1918–22)
 * North Down (1885–1922)
 * South Down (1885–1922)
 * West Down (1885–1922)
 * Downpatrick (1801–85)
 * Newry (1801–1918)