パトゥムワン区
Siam () is a shopping district in the heart of Bangkok, the capital of Thailand. It is situated alongside a stretch of Rama I Road in the city's Pathum Wan District, from Pathum Wan Intersection to Chaloem Phao Junction, beyond which it meets the adjacent Ratchaprasong neighbourhood. The area is home to multiple large shopping malls, and, together with Ratchaprasong, forms what has been termed the city's central shopping district, functioning as the modern-day city centre.