Robert Welles, 8th Baron Willoughby de Eresby (died 19 March 1470) was an English baron. He was the son of Richard Welles, 7th Baron Welles and Joan Willoughby, 7th Baroness Willoughby de Eresby.
On the death of his mother in 1462, he became 8th Baron Willoughby de Eresby. He married Elizabeth Bourchier; they remained childless. Upon his death the barony was inherited by his sister Joan.
He was beheaded on 19 March 1470 in Doncaster.
| Peerage of England | ||
|---|---|---|
| Preceded by Joan Willoughby |
Baron Willoughby de Eresby 1462–1470 |
Succeeded by Joan Welles |