|This article is about the cavalry hero. For the infantry hero, see El Cid.|
El Cid Campeador is a cavalry hero in Age of Empires II: The Conquerors. He has the appearance of a Knight with a lance, similar to other campaign-only hero units, and appears in all of the scenarios of the El Cid campaign as a must-survive unit. He is also available in the Scenario Editor. As a hero, he cannot be converted and can regenerate health. El Cid shares a face icon with his foot version (El Cid), Erik the Red, and Harald Hardraade.
- El Cid is the second hero in Age of Empires II who has two character models, after Joan of Arc. They are followed by Prithviraj in The Forgotten, Yodit in The African Kingdoms, and Le Loi in Rise of the Rajas.
- "Cid" derives from the dialectal Arabic word سيد Sîdi, meaning "Lord" or "Master", while "Campeador" is from Medieval Latin Campidoctor, "Master of the Field" or roughly "Outstanding Warrior". El Cid's actual nickname in life was "El Campeador" (which he was given around the Battle of Golpejera, and is used by contemporary Christian and Muslim sources alike), while Cid was a more generic term for battlefield commanders at the time.