Plenderleith is a Scottish feudal Crown barony comprising approximately one half of Oxnam Parish, Roxburghshire, in the vicinity of Kelso, Scottish Borders. The earliest references to the estates of Plenderleith (also known as Plenderlathe, Prendrelathe, Prendrelath, Pendirlath, and Prendirlath) date to 1175, when John de Plenderleith witnessed a charter in lands in Teviotdale during the reign of William the Lion.