The Glen, also known as Glen House, is an estate and country house in the parish of Traquair, southern Scotland. It is located in the glen of the Quair Water, around 5 kilometres (3 mi) south-west of Innerleithen, and 9 kilometres (5.6 mi) south-east of Peebles, in the Scottish Borders. The estate is recorded from the 13th century, but the present Glen House was built in the mid 19th century. The house is protected as a category A listed building, and the grounds are included in the Inventory of Gardens and Designed Landscapes in Scotland, the national listing of significant gardens. Besides the house, the Temple, stables, and the "Lion Gate" are also category A listed.

Traquair is a small village and civil parish in the Scottish Borders; until 1975 it was in the county of Peeblesshire. The village is situated on the B709 road 2.0 miles (3.2 km) south of Innerleithen at grid reference NT330346.