Fort Jesus is a historical fort located in Mombasa, Kenya. It was built by the Portuguese in 1593, in order to protect their interests in East Africa and to control the Indian Ocean trade. The fort is situated on a coral ridge overlooking the entrance to the Old Port of Mombasa.

Fort Jesus has had a rich and varied history. Over the years, it has been occupied by the Portuguese, the Arabs, the British, and the Kenyans. The fort has been used as a military base, a prison, and a museum. It has also been the site of many battles and sieges.

Today, Fort Jesus is a popular tourist destination and is considered to be one of the best-preserved examples of Portuguese military architecture in East Africa. Visitors can explore the fort's many rooms and corridors, climb the ramparts for panoramic views of the city, and see the various exhibits on display in the museum. The fort has also been designated a UNESCO World Heritage Site, in recognition of its historical and cultural significance.