Ross (2005) tentatively includes the Yam languages in the proposed Trans-Fly – Bulaka River family.

[1] Yam languages have also been in intensive contact with Marind and Suki speakers, who had historically expanded into Yam-speaking territories via headhunting raids and other expansionary migrations.

[1] Internal classification of the Yam languages:[2] Wichmann (2013) did not find a connection between the branches in his automated comparison.

In Papua New Guinea, Yam languages are spoken in Morehead Rural LLG, Western Province.

[7] The words cited constitute translation equivalents, whether they are cognate (e.g. tor, ter for “tooth”) or not (e.g. sento, yarmaker for “bird”).