Tucanoan (also Tukanoan, Tukánoan) is a language family of Colombia, Brazil, Ecuador, and Peru.

Jolkesky (2016) notes that there are lexical similarities with the Arutani, Paez, Sape, Taruma, Witoto-Okaina, Saliba-Hodi, Tikuna-Yuri, Pano, Barbakoa, Bora-Muinane, and Choko language families due to contact.

There are two dozen Tucanoan languages. There is a clear binary split between Eastern Tucanoan and Western Tucanoan.

Plus unclassified Miriti.†

Most languages are, or were, spoken in Colombia.

Internal classification by Jolkesky (2016):

(† = extinct)

Below is a full list of Tucanoan language varieties listed by Loukotka (1968), including names of unattested varieties.