Nativity of Our Lady Cathedral (Thai: อาสนวิหารแม่พระบังเกิด) is located in Bang Nok Khwaek, Amphoe Bang Khonthi, Samut Songkhram Province. The church is built in French Gothic style and decorated with stained glass windows imported from France. In two rows these show scenes of the life of Jesus in top row, as well as holy people (men to the north, women to the south).
Aroung 1840 nine Chinese Catholic families moved to the rim of the Mae Klong river. The community grew to about 200 Catholics till 1847, when a first wooden church named Sala Daeng (Red Hall) or Raung Yao (Long Canal) was built near the location of the current cathedral. In 1850 Father Marin bought the land at the mouth of the Khlong Damnoen Saduak and donated it to the church.
In 1890 the French missionary Father Paulo Salmon started the construction of the Nativity of Our Lady church, which was inaugurated on February 2, 1896. During World War II several of the windows broke, which took till 1993 to be fully repaired. 1994-99 a major renovation of the cathedral was done, overlooked by Father Pradit.