Henry Stafford, 2nd Duke of Buckingham, English politician, Lord High Constable of England (died 1483)

Henry Stafford, 2nd Duke of Buckingham, was an English nobleman known as the namesake of Buckingham's rebellion, a failed but significant collection of uprisings in England and parts of Wales against Richard III of England in October 1483. He was executed without trial for his role in the uprisings. Stafford is also one of the primary suspects in the disappearance of Richard's nephews, the Princes in the Tower.

The Lord High Constable of England is the seventh of the Great Officers of State, ranking beneath the Lord Great Chamberlain and above the Earl Marshal. This office is now called out of abeyance only for coronations. The Lord High Constable was originally the commander of the royal armies and the Master of the Horse. He was also, in conjunction with the Earl Marshal, president of the court of chivalry or court of honour. In feudal times, martial law was administered in the court of the Lord High Constable.