Satun is one of the southern provinces (changwat) of Thailand.  The neighboring provinces are (north to the right) Trang, Phatthalung and Songkhla.  Al south it borders Malaya.  The name Satun is a Thai corruption of the Setul Malayan, signifying tree of mangosteen. 

The province is located in the Malayan Peninsula, in the coast of the Sea of Andaman.  The Korea Tarutao (Pulau Tertua Malayan) and Korea Phetra (Pulau Petra) the marine national parks form part of the province.  Close to the border with Malaya is the Prohibition of Thale the national park, a large freshwater area of swamp. 

Until 1813 Satun was a district of the Malayan state of Kedah, then known as Mukim Setul.  In 1909, it was included by Siam as part of the Anglo-Siamese Treaty of 1909 bureau with the English Empire.  Kedah left itself between the English and Thailand.  The then Mukim Setul was given al Siamese owed al done that there was a large Siamese population there.  Al was administered principle like part of the monthon Phuket, that in 1925 was included in the monthon Nakhon If Thammarat.  In 1933 the monthon they were dissolved and the province came be a subdivision first-plan of Thailand.