Baron Hervey is a title that has been created three times, once in the Peerage of Ireland and twice in the Peerage of England. The first creation came in the Peerage of Ireland in 1620 when Sir William Hervey, 1st Baronet was made Baron Hervey, of Rosse in the County of Wexford. He had been created Baronet of St. Martin's in the Fields on 31 May 1619. In 1628 he was also created Baron Hervey, of Kidbrooke in the County of Kent, in the Peerage of England. However, both titles became extinct on his death in 1642.
The third creation came in the Peerage of England in 1703 when John Hervey was made Baron Hervey, of Ickworth in the County of Suffolk. He was a second cousin thrice removed of the holder of the 1620 and 1628 creations and was later created Earl of Bristol. For more information, see the Marquess of Bristol.
Baron Hervey (1620/1628) 
- William Hervey, 1st Baron Hervey (d. 1642)