Elizabeth Hay

Elizabeth Hay may refer to:
 * Elizabeth Hay (novelist) (born 1951), Canadian writer
 * Elizabeth Monroe Hay, full name of Eliza Monroe Hay (1786–1840)
 * Elizabeth Wellesley, Duchess of Wellington (1820–1904), née Lady Elizabeth Hay, British peer
 * Elizabeth Hay, Countess of Erroll (1801–1856), wife to the Earl of Erroll
 * Betty Hay (1927–2007), American biologist