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

Constituencies:
 * Down (1922–50)
 * North Down (1950&mdash;)
 * South Down (1950&mdash;)
 * Lagan Valley (1983&mdash;)
 * Newry & Armagh (1983&mdash;)
 * Strangford (1983&mdash;)