Het is the term used by Thomas Falkner, an English Jesuit, at the end of the 18th century for various nomadic groups from the Argentine Pampas [es] and Patagonia, including the so-called indigenous Pampas [es] and northern Tehuelches, but excluding the Mapuche (speakers of Mapudungun).

The Het were neighbored on the north by the Chaná, on the northwest and west by the Mapuche, and on the south by the Puelche.

[2] The supposed linguistic similarities between languages of different tribes, grouped by Falkner together as "Hets", are highly disputable.

This evidence is too scarce to be able to conclusively identify a relationship, although on the basis of this little data, Viegas-Barros shows that the language of the Querandíes could have been related to the Gününa Küne.

[2] Loukotka (1968) lists the following basic vocabulary items for Chechehet and Querandí;[3] Taluhet is unattested.