Chong Nonsi Station (English: Chong Nonsi Station, code S3) is an elevated BTS Skytrain station on the Silom Line, part of the 6th Cycle of the King's Birthday Commemoration Skytrain project. It is located above the Chong Nonsi Canal on Narathiwat Ratchanakarin Road in the Bang Rak district of Bangkok, right in the heart of the business areas of Sathorn and Silom. This station serves as an important connection point to the Bangkok BRT (Bus Rapid Transit) system on the Sathorn-Ratchaphruek route at Sathorn Station.