Elizabeth O'Brien, Countess of Inchiquin

The Right Honourable
The Countess of Inchiquin
The Right Honourable The Countess of Inchiquin
Born	Hon. Elizabeth Brydges; 1651
Died	3 February 1718 (aged 66–67)
Spouses	; Edward Herbert, 3rd Baron Herbert of Chirbury; (m. 1673; died 1678) ; William O'Brien, 2nd Earl of Inchiquin; (m. 1684; died 1692) ; Charles Howard, 4th Baron Howard of Escrick; (m. 1694, divorced)
Parent(s)	George Brydges, 6th Baron Chandos; Lady Susan Montagu

Elizabeth O'Brien, Countess of Inchiquin (25 March 1651 (date baptised) – 3 February 1718) was an English noblewoman who made three notable marriages.

The Right Honourable The Countess of Inchiquin
Born	Hon. Elizabeth Brydges 1651
Died	3 February 1718(1718-02-03) (aged 66–67)
Spouses	Edward Herbert, 3rd Baron Herbert of Chirbury (m. 1673; died 1678) William O'Brien, 2nd Earl of Inchiquin (m. 1684; died 1692) Charles Howard, 4th Baron Howard of Escrick (m. 1694, divorced)
Parent(s)	George Brydges, 6th Baron Chandos Lady Susan Montagu