Fort São Sebastião de Xama, Portuguese colonial fort in Shama District, Ghana.

Fort São Sebastião de Xama stands on a hill of soft laterite above Shama, its present form largely Dutch work from after 1664. A broad staircase leads up to the entrance gate; it was built to mask erosion damage to the masonry, which the heavy rainfall repeatedly caused. Little of the original Portuguese structure survives, and the fort was restored between 1954 and 1957.

The Portuguese founded this fort in 1523 as a trading center, which later fell under Dutch control in 1642 during their expansion along the Gold Coast. The shifts in authority shaped the site's development across many generations.

Anton Wilhelm Amo, born in Axim around 1703 and taken to Europe, became a professor in Halle and Jena; he returned to the Gold Coast and lived at the fort in the 1750s. Sources disagree on whether the Dutch held him there. He is buried in the fort's graveyard, and the site now houses government offices and a post office.

The fort stands on a hill of soft laterite above the town of Shama, and the broad staircase leading up to the entrance gate was built to mask erosion damage to the masonry. The structure is open to visitors and now houses local authorities and a post office. Heavy rain washes the laterite easily, so paths can be slippery.

The Zamani Project created a complete digital scan of this site in 2013 using laser technology. This detailed record preserves the structure's information for future generations.