Tamão (Chinese: 屯門) was a trade settlement set up by the Portuguese on an island in the Pearl River Delta, China.

[2] In May 1513, the Portuguese explorer Jorge Álvares arrived on the Chinese coast at an island in the Pearl River Delta, which they called "Tamão", which is understood to be a corruption of "Tunmen" (屯門), the name for what is now the western Hong Kong and Shenzhen area.

This leads some researchers to link the Tunmen of Ming times to Tuen Mun in the New Territories of Hong Kong.

[5] One source specifically states that the settlement was at the "bay of Tunmen ... now called Castle Peak".

[7][4] In 1521, the settlement was abandoned after the Battle of Tunmen with the Chinese navy; the Portuguese gathered in Malacca in Malaysia.