Mingarry Castle (or Mingary Castle) (Caisteal Mhìogharraidh in Gaelic) is a castle situated a mile south-east of the small village of Kilchoan in Lochaber, Scotland. Nestled on ridge of rock overlooking the sea, it was considered a strategically important site in terms of communication with overseas areas and as an entranceway to the Sound of Mull. The castle fell into ruin about 600 years after its construction in the 13th century; the majority of the building, however, dates from much later than this, from the 17th century onwards. Mingarry is roughly hexagonal in shape with nine-foot-thick walls, thicker on the seaward side.