Windham Henry Quin, 2nd Earl of Dunraven and Mount-Earl (29 September 1782 – 6 August 1850) was an Irish Peer.

The eldest son of Valentine Richard Quin, 1st Earl of Dunraven and Mount-Earl, he was styled Lord Adare from 1816 to 1822 and Viscount Adare thereafter until he succeeded to the Earldom on the death of his father in 1824.

He married, on December 27, 1810, Caroline, daughter and heiress of Thomas Wyndham of Dunraven Castle, Glamorgan

Glamorgan

Glamorgan or Glamorganshire is one of the thirteen historic counties and a former administrative county of Wales. It was originally an early medieval kingdom of varying boundaries known as Glywysing until taken over by the Normans as a lordship. Glamorgan is latterly represented by the three...

. They had the following children:

• Edwin Wyndham-Quin, 3rd Earl of Dunraven and Mount-Earl
  Edwin Wyndham-Quin, 3rd Earl of Dunraven and Mount-Earl
  Edwin Richard Wyndham-Quin, 3rd Earl of Dunraven and Mount-Earl KP, FRS was a British Peer. He was styled Viscount Adare from 1824 to 1850....
  
   (1812–1871)
• Captain the Hon. Windham Henry Wyndham Quin (November 2, 1829–1865), who married, on January 24, 1856, Caroline, third daughter of Rear Admiral
  Rear Admiral
  Rear admiral is a naval commissioned officer rank above that of a commodore and captain, and below that of a vice admiral. It is generally regarded as the lowest of the "admiral" ranks, which are also sometimes referred to as "flag officers" or "flag ranks"...
  
   Sir George Tyler, K.H., of Cottrell, Glamorgan, M.P., and had issue.
• Lady Anna Maria Charlotte Wyndham Quinn (November 1814 – January 7, 1855), who married William Monsell
  William Monsell, 1st Baron Emly
  William Monsell, 1st Baron Emly PC was an Anglo-Irish landowner and Liberal politician. He held a number of ministerial positions between 1852 and 1873, notably as President of the Board of Health in 1857 and as Postmaster General between 1871 and 1873.-Background and education:Monsell was born to...
  
  on August 11, 1836