An executor is a person named by a maker of a will to carry out the directions of the will. Typically the executor is the person responsible for offering the will for probate, although it is not absolutely required that he or she do so. The executor's duties also include the payment of outstanding debts and the disbursement of property to the heirs, as designated in the will. Also the executor makes all donations as left in bequests to charitable and other organizations as directed in the will. In most circumstances the executor is the representative of the estate for all purposes, and has the ability to sue or be sued on behalf of the estate.
In the Star Wars universe, the Executor was the Super Star Destroyer that served as Darth Vader's flagship. It was destroyed at the Battle of Endor. Also in the Star Wars universe, executor is a rank among the Yuuzhan Vong, the highest among the Intendant caste.