The Archdeacon of Galloway was the only archdeacon in the medieval Diocese of Galloway (Whithorn), acting as a deputy of the Bishop of Galloway. The following is a list of archdeacons:

List of archdeacons of Galloway

• Robert, fl. 1154 x 1186
• John, fl. 1186 x 1222
• Michael, fl. 1235 x 1253
• Geoffrey, 1254-1294
• John Nepos, 1294-1294
• Gilbert de Galloway (Galwidia), fl. 1320 x 1321
• Patrick Macdowell, x 1331-1360
• Stephen de Makerstoun (Malcarston), fl. x 1367.
• Duncan Petit, fl. 1363
• Richard Smerles fl. x 1391.
• Thomas de Buittle, 1391 - 1415.
• Gilbert Cavan, 1415-1415 x 1417.
• John Gray, 1415 x 1417-1425
• Patrick Young, 1423-1471
  • David de Hamilton, 1425
  • John Betoun, 1427-1428
  • John Benyng, 1430
  • Thomas Spens, x 1450
• John Otterburn, 1471-1478
• George Brown, 1477-1478
• Andrew Stewart, 1502-1507
• Walter Betoun, 1507
• Thomas Nudry, 1509-1510 x 1512.
• Alexander Shaw, 1512-1513
• Henry Wemyss, 1513 x 1522-1531
• Patrick Arnot, 1529-1543
  • Thomas Hay, 1531
• Lyon Brown, 1576-1577
• James Adamson, 1614-1637