| Randall Plunkett | |
| Office1: | Representative peer of Ireland |
| Term1: | 1850-1852 |
| Office2: | Member of Parliament for Drogheda |
| Term2: | 1835-1837 |
| Party: | Conservative |
| Birth Date: | 5 September 1804 |
| Father: | Edward Plunkett |
Randall Edward Plunkett, 15th Baron Dunsany (5 September 1804 – 7 April 1852) was an Anglo-Irish peer and Conservative politician.
Plunkett was the son of Edward Plunkett, 14th Baron Dunsany and his first wife, Hon. Charlotte Louisa Lawless.
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. He represented the seat as a Conservative until 1837. 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.
On 29 December 1838, he married Elizabeth Evelyn. Dunsany was succeeded in his title by his younger brother, Edward.[1]