 It is the intersection of Phetchaburi, Ratchadamri and Ratchaprarop roads.The next intersection on Ratchaprarop side is Makkasan.The term "Pratunam" means "water gate", as at one time there was a water gate within nearby Sa Pathum Palace, which commonly was known as "Pratunam Wang Sa Pathum" or "Pratunam Sa Pathum" (ประตูน้ำวังสระปทุม, ประตูน้ำสระปทุม).