The Lord Commander is a rank found in several of the Seven Kingdoms' institutions. It is a combination of 'Lord', meaning that the person holding the title is of noble birth, or at the very least knighted, and 'Commander', indicating a position of authority and leadership. The term may refer to:
- The Lord Commander of the Kingsguard, the elite group of knights whose duty it is to protect the King and the royal family'. The Kingsguard's current Lord Commander is Ser Jaime Lannister. He took over the role when Barristan Selmy was exiled. Ser Duncan the Tall was Lord Commander when Selmy rose to prominence.
- The Lord Commander of the Night's Watch, the group responsible for defending the Wall. The current Lord Commander is Jeor Mormont.
The leader of the City Watch of the Seven Kingdoms' various cities is a 'Lord Commander' when of noble birth, or a 'Commander' when not. Janos Slynt was merely a 'Commander' due to his lack of noble birth.