Richard Plunkett, 2nd Baron of Dunsany (died c. 1482) was an Irish nobleman.
[1] He was one of at least five surviving sons of Christopher Plunkett, 1st Baron of Dunsany, and his first wife Anne Fitzgerald, daughter of Richard FitzGerald.
[2] He married Joan FitzEustace, daughter of Rowland FitzEustace, 1st Baron Portlester and his first wife Elizabeth Brune; Portlester was a powerful political figure, at various times both Lord Treasurer of Ireland and Lord High Chancellor of Ireland.
[2] Richard Plunkett was alive in 1477 and died around 1482, being succeeded by his son John Plunkett, 3rd Baron of Dunsany.
His widow remarried her cousin Sir Maurice FitzEustace.