Khanom chin or Khanom jeen are fresh, thin rice noodles in Thai cuisine which are made from rice sometimes fermented for three days, boiled, and then made into noodles by extruding the resulting dough through a sieve into boiling water. Khanom chin is served in many kinds of stock: coconut milk, fish curry, and chilli.

Rice noodles, or simply rice noodle, are noodles made with rice flour and water as the principal ingredients. Sometimes ingredients such as tapioca or corn starch are added in order to improve the transparency or increase the gelatinous and chewy texture of the noodles. Rice noodles are most common in the cuisines of China, India and Southeast Asia. They are available fresh, frozen, or dried, in various shapes, thicknesses and textures. Fresh noodles are also highly perishable; their shelf life may be just several days.