Sanam Chai may refer to:
สนามชัย Sanam Chai Subdistrict in Tha Mai District, Chanthaburi Sanam Chai Subdistrict in Bang Sai District (1404), Phra Nakhon Si Ayutthaya Sanam Chai Subdistrict in Sathing Phra District, Songkhla Sanam Chai Subdistrict in Mueang Suphan Buri District Khlong Sanam Chai, a canal in Bangkok
สนามไชย Sanam Chai Road, a road in Bangkok Sanam Chai MRT station, which serves the area