The Janambre (Xanambre) were an indigenous people of Tamaulipas in northeast Mexico. They were the historical enemies of the Pison (Pisones).
Janambre (Xanambre) is a poorly attested extinct language that was spoken in Tamaulipas, northeast Mexico. It has no apparent relatives and remains unclassified. Campbell (1997), based on William Bright (1955), suggests a relationship with the extinct, unclassified languages Naolan and Tamaulipeco, although no evidence is given. Other languages unclassified extinct languages of Tamaulipas include the language of the Pisones, "Negrito" and Olive.