Sir Walter Scott, 1st of Branxholme, 3rd of Buccleuch, known as "Wicked Wat", was a nobleman of the Scottish Borders and the chief of Clan Scott who briefly served as Warden of the Middle March active in the wars known as the Rough Wooing and a noted Border reiver. He was killed on Edinburgh High Street in a feud with Clan Kerr in 1552. His great-grandson was Sir Walter Scott, 1st Lord Scott of Buccleuch, the "Bold Buccleuch" (1565–1611), a border reiver famed for his role in the rescue of Kinmont Willie Armstrong.
- Position held
- Warden of the Scottish Middle March
- Born
- 1490
- Died
- October 4, 1552, October 4, 1552
