Sir Lionel Walden (1620 - 23 March 1698) of Huntingdon was an English Member of Parliament in 1661-1679 and 1685-1687 and Mayor of Huntingdon for 1686–87.
[1] He was the only son of another Lionel Walden and Elizabeth Bawde, daughter of Morrice Bawde of Somersby, Lincolnshire.
[2] He was knighted on 29 January 1673 and elected Mayor of Huntingdon for the year 1686–87.
Lionel married Elizabeth Balaam, daughter and coheir of Charles Balaam of Elm, Cambridgeshire.
His son Lionel Walden (c.1653-1701) also became Member of Parliament for Huntingdon.