Baron Glenconner, of The Glen in the County of Peebles, is a title in the Peerage of the United Kingdom. It was created in 1911 for Sir Edward Tennant, 2nd Baronet, who had earlier represented Salisbury in the House of Commons as a Liberal and also served as Lord Lieutenant of Peeblesshire. Lord Glenconner was succeeded by his second son, the second baron. The latter was succeeded in 1983 by his eldest son, the third baron, who bought the island of Mustique. As of 2014, the titles are held by the third baron's grandson, the fourth baron, who became the next-to-youngest peer in the realm when he succeeded in August 2010.

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.