William Lowson Mitchell-Thomson, 1st Baron Selsdon, known as Sir William Mitchell-Thomson, 2nd Baronet, from 1918 to 1932, was a Scottish politician who served as British Postmaster-General from 1924 till 1929.

Carlton Terrace is a residential street in Edinburgh, Scotland. It is located on the east side of Calton Hill, at the eastern extremity of the New Town, part of the UNESCO World Heritage Site inscribed in 1995.