To dream of a dictator represents an aspect of yourself that is all-controlling. Negatively, it may reflect you or someone else that is repressive or totally uncompromising. Dictators in dreams can also represent people or situations that are not allowing you to do anything you want. Possibly an over controlling parent or father figure.
To dream that you are a dictator represents situations where you are all-controlling. A sign that you need to be more flexible and open-minded in your thinking and in your decision making. You may be too controlling.