Lieutenant-Colonel Sir Henry Vassall Webster KTS (February 1793 – 19 April 1847) was a British Army officer.

He served as an aide-de-camp to the Prince of Orange at the Battle of Waterloo.

He was the second son of Sir Godfrey Webster, 4th Baronet and his wife Elizabeth Vassall (later Baroness Holland).

[1] Webster married Grace (d. 27 March 1866), the only daughter and heir of Samuel Boddington, on 23 October 1824.

[1] He died on 19 April 1847 from self-inflicted knife wounds.