Saphan Sung is one of the 50 districts (khet) located in Bangkok, Thailand. It is situated on the eastern part of the capital city.
The district is bounded by several other Bangkok districts, including Khan Na Yao, Min Buri, Lat Krabang, Prawet, Suan Luang, Bang Kapi, and Bueng Kum. Most of the area within Saphan Sung consists of low-density residential zones.