Edward John Carlos Plunkett, 20th Baron of Dunsany (born Dublin 10 September 1939 — died Navan, County Meath, 24 May 2011), with Irish, Brazilian and UK citizenship, was the grandson of the author Lord Dunsany, and a modern artist and property owner.
Lord Dunsany succeeded to the title in 1999 on the death of his father, Lt-Col Randal Arthur Henry Plunkett, 19th Baron of Dunsany.