A Famosa, Portuguese fortress in Malacca, Malaysia.

A Famosa is a fortress ruin in Malacca, Malaysia, now consisting of a single stone gatehouse with massive walls built from laterite and limestone. The gate displays a coat of arms above and opens onto a paved path leading up the hill.

The Portuguese built the structure in 1511 after conquering the sultanate to secure their trade route. The Dutch took control in 1641 and the British ordered most of it demolished in 1807, leaving only this gatehouse standing.

The name means "The Famous" in Portuguese, originally given to the five-storey keep and later applied to the whole fortress; today it usually refers to the Porta de Santiago gate. The gate's arch carries the inscription "ANNO 1670" and a bas-relief of the Dutch East India Company, added when the Dutch renovated it.

The ruin sits a short walk from the city center along a paved footpath. The area is open and easy to walk around during the day, with morning visits recommended to avoid midday heat.

Demolition began on 10 August 1807, when convicts were set to take the walls apart stone by stone with crowbars; when some 4.5-metre sections resisted, gunpowder was used and blocks the size of houses flew into the sea. Captain William Farquhar then spared two gateways, including the Santiago Gate. The surviving arch carries the Dutch inscription "ANNO 1670".