title: Mary Sidney (disambiguation)
text: # Mary Sidney (disambiguation)
  
  Mary Sidney (1561 – 1621) was a Countess of Pembroke.
  
  Mary Sidney may also refer to:
  
  * Mary Dudley, Lady Sidney (c. 1530–1535 – 1586)
  * Lady Mary Wroth née Sidney (1587–1651/3), poet
  