United Nations Security Council Resolution 543

United Nations Security Council resolution 543, adopted unanimously on 29 November 1983, is a legislation that considered the report filed by the Secretary-General on the subject of the United Nations Disengagement Observer Force. The Council noted its efforts to establish a durable and just peace in the Middle East, but also expressed its concern over the prevailing state of military tension evident in the area.

The resolution decided to call upon the parties concerned to immediately implement Resolution 338 (1973), it renewed the mandate of the Observer Force for another six months until 31 May 1984 and requested that the Secretary-General submit a report on the situation at the end of that period.