Lansdowne, one of Masterton's largest suburbs, is on the left bank of the Waipoua stream at the north-western end of Masterton, New Zealand. On the town's highest ground it provides broad vistas of much of the Wairarapa Valley. It is further distinguished from the rest of the town by having been subdivided late in the 19th century and because it was administered by the Masterton County Council. It was amalgamated with Masterton Borough in 1921.