* Lion (or lioness) can (because a lion is the king of the animals) certainly represent a ruler and as such the king. However, in this age, a lion can be interpreted as the president or prime minister (depending on the country of your residence). Taken this as a starting point, dream interpretation of this dream symbol becames a breeze.
Dream Meanings by Ibn Sirin
(A tyrant; An unjust ruler; Death; Healing from a sickness; Receiving an inheritance)
A lioness in a dream represents ignorance, pride, affectation and perfidy. Seeing a lion without being seen, means escape from harm one may fear, attaining knowledge and growing in wisdom.
A struggle with a lion that does not lead to one's death in a dream means observing a long lasting diet caused by an illness. If one fights with a lion and eats or snatches off a piece of his flesh, bones or hair in a dream, it means that he will attain success,leadership, wealth or conquer his enemy. Sleeping beside a lion in a dream means safety from illness, or protection from one's enemy.
If one sees a lion inside his own house in a dream, it means that he will gain the upper hand, or it could represent longevity and a high position in the world.
A lion entering a town in a dream means a plague that will strike such a town.
In a dream, a lioness represents an evil woman, or a despot who is also affectionate toward her cubs, or she could represent the daughter of a king or a ruler. Sleeping with a lioness in a dream means conquering one's enemy.
Eating the flesh of a lioness in a dream means that one may become wealthy.
Lion Dream Interpretation by Gustavus
To dream of a lion, signifies that a great force is driving you. If you subdue the lion, you will be victorious in any engagement. If it overpowers you, then you will be open to the successful attacks of enemies.
To see caged lions, denotes that your success depends upon your ability to cope with opposition. To see a man controlling a lion in its cage, or out denotes success in business and great mental power. You will be favorably regarded by women.
To see young lions, denotes new enterprises, which will bring success if properly attended.
For a young woman to dream of young lions, denotes new and fascinating lovers. For a woman to dream that she sees Daniel in the lions' den, signifies that by her intellectual qualifications and personal magnetism she will win fortune and lovers to her highest desire.
To hear the roar of a lion, signifies unexpected advancement and preferment with women.
To see a lion's head over you, showing his teeth by snarls, you are threatened with defeat in your upward rise to power.
To see a lion's skin, denotes a rise to fortune and happiness.
To ride one, denotes courage and persistency in surmounting difficulties.
To dream you are defending your children from a lion with a pen-knife, foretells enemies will threaten to overpower you, and will well nigh succeed if you allow any artfulness to persuade you for a moment from duty and business obligations.