Randall Edward Plunkett, 15th Baron Dunsany (5 September 1804 – 7 April 1852) was an Anglo-Irish peer and Conservative politician.
[citation needed] On 29 June 1835, he was declared elected on petition as the Member of Parliament for Drogheda, after his opponent Andrew O'Dwyer had been deemed ineligible.
On 11 December 1848, he inherited his father's title, becoming Baron of Dunsany.
In 1850 Dunsany was elected as an Irish representative peer and took his seat in the House of Lords.
Dunsany was succeeded in his title by his younger brother, Edward.