The Kiranti languages are a major family of Sino-Tibetan languages spoken in Nepal and India (notably Sikkim, Darjeeling, Kalimpong, and Bhutan) by the Kirati people.

George van Driem had formerly proposed that the Kiranti languages were part of a Mahakiranti family, although specialists are not completely certain of either the existence of a Kiranti subgroup or its precise membership. LaPolla (2003), though, proposes that Kiranti may be part of a larger "Rung" group.

There are about two dozen Kiranti languages. Among the better known are Limbu, Sunuwar, Bantawa, Chamling, Khaling, Bahing, Yakkha, Wayu, Dungmali, Lohorung, and Kulung.

Kiranti verbs are not easily segmentable, due in large part to the presence of portmanteau morphemes, crowded affix strings, and extensive (and often nonintuitive) allomorphy. Thus their relationship to each other has been a subject of debate.

Overall, Kiranti languages are classified:

Ethnologue adds Tilung language to Western Kiranti, based on Opgenort (2011).

Opgenort (2005) classifies the Kiranti languages as follows, and recognizes a basic east-west division within Kiranti.

Historical linguists, as early as 2012, do not consider Kiranti to be a coherent group, but rather a paraphyletic one due to lack of shared innovations. Gerber & Grollmann (2018) presented additional evidence supporting the paraphyletic nature of Kiranti. A Central-Eastern Kiranti group is considered to be valid by Gerber & Grollmann (2018), but they consider "Western Kiranti" unclassified within Trans-Himalayan languages.