Wat Phra Sri Mahathat Station (English: Wat Phra Sri Mahathat Station, code N17 for the Sukhumvit Line and PK16 for the Pink Line) is an elevated train station and a key interchange point on the Chaloem Ratchamongkhon Line (BTS Skytrain), extending from Mo Chit to Saphaan Mai and Khu Khot, as well as on the Pink Line from Khae Rai to Minburi. The station is uniquely positioned above a tunnel that runs beneath the roundabout at the Constitution Protection Monument, also known as the main roundabout in Lak Si, and is situated adjacent to the Lak Si - Ram Inthra overpass. Located in the Anusawari sub-district of Bang Khen district in Bangkok, it serves as a significant transfer station in the northern part of the city.