title: Donough O'Brien
text: # Donough O'Brien
  
  Donough O'Brien may refer to:
  
  * Donough O'Brien (author) (born 1939), marketing, public relations executive and author
  * Donough O'Brien (cricketer) (1879–1953), Welsh-born Irish cricketer
  * Sir Donough O'Brien, 1st Baronet (1642–1717), Irish politician and baronet
  * Donough O'Brien, 16th Baron Inchiquin (1897–1968)
  * Donough O'Brien, 2nd Earl of Thomond (died 1553)
  * Donogh O'Brien, 4th Earl of Thomond (died 1624)
  * Donough O'Brien (died 1582)
  