Countess of Powis is the title given to the wife of the Earl of Powis and has been held by a number of women, including:
Elizabeth Herbert, Marchioness of Powis (c.1634-1691) Barbara Herbert, Countess of Powis (1735–1786) Henrietta Clive, Countess of Powis (1755–1830) Lucy Herbert, Countess of Powis (1793–1875) Violet Herbert, Countess of Powis (1865–1929)