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.

Idiyappam, also known as string hopper, indiappa, noolputtu, noolappam, or ottu shavige, is a string hopper dish originating from southern India. It consists of rice flour pressed into noodles, laid into a flat disc-like shape and steamed. The dish also spread to Southeast Asia, where it is called putu mayam in Malaysia and Singapore, and putu mayang in Indonesia.