Wen'an (Chinese: 文安; pinyin: Wén'ān) is a county in the central part of Hebei province, China, on the upper reaches of the Daqing River (大清河), a tributary of the Hai River, and bordering Tianjin to the east. It is under the administration of the prefecture-level city of Langfang, and, as of 2004^[update], had a population of 460,000 residing in an area of 980 km² (380 sq mi).

The county administers 12 towns and one ethnic township.

Towns:

The only township is Daweihe Hui and Manchu Ethnic Township (大围河回族满族乡)