Phlapphla Chai refers to a specific geographical location and infrastructure within Bangkok, Thailand. It identifies a road situated in the Pom Prap and Wat Thep Sirin sub-districts of the Pom Prap Sattru Phai District.
The name also designates a prominent five-way intersection where Phlapphla Chai Road meets Luang Road and Maitri Chit Road. Additionally, it serves as the name for the surrounding area located in the northernmost section of Bangkok's Chinatown.