Countess of Portarlington

Countess of Portarlington is a title used by the wife of the Earl of Portarlington.

Countess of Portarlington may refer to:


 * Caroline Dawson, Countess of Portarlington, countess 1785–1813
 * Alexandrina Dawson-Damer, Countess of Portarlington, countess 1847–1874
 * Harriet Dawson-Damer, Countess of Portarlington, countess 1889–1894
 * Emma Dawson-Damer, Countess of Portarlington, countess 1892–1901 (Viscountess Portman: 1901–1929)
 * Winnifreda Dawson-Damer, Countess of Portarlington, countess 1907–1975
 * Davinia Dawson-Damer, Countess of Portarlington, countess 1961–present