Robert Waldron Plenderleith FRSE (1901–1974) was a 20th-century Scottish engineer and museum curator.
In 1935 his private interests brought him the position of Assistant Keeper at the Royal Scottish Museum on Chambers Street in Edinburgh and in March 1957 he became full Keeper of the Technology Department of the Museum.
His proposers were Douglas Allan, Hugh Bryan Nisbet, Sir J. Donald Pollock, David Alan Stevenson II and James Cameron Smail.
[4] In 1965 he made a memorable visit to the Science Museum, London to critique the Freedom 7 space exhibition, which had held the astronaut Alan Shepard.
[5] He retired in 1966 and died at home, 25 Findhorn Place in Edinburgh on 22 November 1974, a few days before his 73rd birthday.