Rai language may refer to:
- Rai languages or the Kiranti languages, a family of Sino-Tibetan languages spoken in Nepal, India and Bhutan by the Rai people.
- Bantawa language, a Kiranti language spoken in Nepal, Darjeeling, Sikkim, Kalimpong and Bhutan
- Chamling language, a Kiranti language spoken in parts of Nepal and Darjeeling, Sikkim, Kalimpong and southern Bhutan
- Thulung language, a Kiranti language spoken in parts of Nepal and Sikkim
- Bahing language, a Kiranti language spoken in the eastern part of Nepal, particularly Okhaldhunga and Solukhumbu districts. There are a few Bahing communities in Khotang and Terhathum.
- Khaling language, a Kiranti language spoken in the northern part of Solukhumbu district
- Kulung language, a Kiranti language spoken in the north-west part of Solukhumbu district
See also