Hausa Mosque in central Freetown, Sierra Leone, is one of the oldest Islamic structures in the country, built in the 1830s by Hausa settlers from northern Nigeria. These settlers, primarily traders and Islamic scholars, significantly contributed to the spread of Islam in the region. The mosque features Sudano-Sahelian architectural style with distinctive mud-brick construction and slender minarets, reflecting West African Islamic traditions. Despite enduring colonial-era conflicts and modern challenges, including damage during the civil war, restoration efforts have preserved its structure.