Teochew dialect
More than 1,000 years ago, Han Chinese called Nakhon Chai Si (including other districts in this region, such as Samut Sakhon) according Teochew dialect that "Lang-Ka-Su" (; pinyin: "Lóng zǐ cuò"), refers to 'home of dragon descendant'. Because the Tha Chin River flows through the winding like a serpent or dragon.