Leo - The Sign of the Lion Ruling planet of this Leo sign is Sun. The people of this sign are natural leaders and chiefs. The Leo zodiac sign is the fire sign. The people born in this sign are seen to be enthusiastic, energetic, and are confident. They are generally happy and lucky people. As this is a fixed sign therefore Leo born are stable in all kind of work they do. They are not in favor of changes and like to stick to what they feel is good. They have the energy and confidence to remain in lead.