Yarang (Thai: ยะรัง, pronounced [já(ʔ).rāŋ]) is a district (amphoe) of Pattani province, southern Thailand.

It is believed to be the location of an ancient kingdom named "Langkasuka" or "Langya Siao" as evidence appears in Chinese, Javanese, Malay and Arabic documents.

Archaeological sites in the area of Ban Thasap - Khao Kampan, Mueang Yala District, Yala Province and the ancient city of Bujang Valley (Bujang Valley) in Kedah State, Malaysia cause an assumption that there may be a route across the peninsula by land (transpeninsular route) that was used to communicate between cities on the western sea coast (Indian Ocean) and the eastern sea coast (South China Sea) since at least approximately 1,000 years ago.

There is evidence in Chinese, Arabic, Javanese, and Malay documents from around the 13th century, and it is assumed that it would be centered in the area of present-day Pattani Province and may have influence extending to the Malaysian state as well.

and is a stable land It has played a political and economic role, always being involved with nearby territories and having extensive trade contacts with foreigners since the 12th century.

Neighboring districts are (from the south clockwise) Raman and Mueang Yala of Yala province, Mae Lan, Nong Chik, Mueang Pattani, Yaring, Mayo, and Thung Yang Daeng of Pattani Province.

Tambon Khaotum in the district is the site of Fort Sirindhorn, home of the Internal Security Operations Command Area 4.