title: Mary Hay
text: # Mary Hay
  
  Mary Hay may refer to:
  
  * Mary Hay, 14th Countess of Erroll (died 1758)
  * Mary Hay (actress) (1901–1957), American dancer, actress, playwright and former Ziegfeld girl
  * Mary Garrett Hay (1857–1928), American suffragist
  * Mary Cecil Hay (1840/41–1886), English novelist
  