The Citadel of Qaitbay (or the Fort of Qaitbay; is a 15th-century defensive fortress located on the Mediterranean sea coast, in Alexandria, Egypt. It was built from 1477 to 1479 AD by Sultan Al-Ashraf Sayf al-Din Qa'it Bay..
The Citadel is situated on the eastern side of the northern tip of Pharos Island at the mouth of the Eastern Harbour..

The Qaitbay Citadel in Alexandria is considered one of the most important defensive strongholds, not only in Egypt, but also along the Mediterranean Sea coast. It formulated an important part of the fortification system of Alexandria in the 15th century AD.
The Citadel is situated at the entrance of the eastern harbour on the eastern point of Pharos Island. It was erected on the site of the former Lighthouse of Alexandria, which was one of the Seven Wonders of the Ancient World.