| Office: | Member of Parliament for County Londonderry |
| Term Start: | 1703 |
| Term End: | 1742 |
| Predecessor: | Sir Tristram Beresford, Bt William Jackson |
| Alongside: | William Conolly, Arthur Dawson, Edward Cary |
| Successor: | Edward Cary Hercules Langford Rowley |
| Birth Date: | 1679 |
| Parents: | Sir John Rowley Mary Langford |
| Spouse: | Frances Upton |
| Children: | Dorothy Wingfield, Viscountess Powerscourt Hercules Langford Rowley |
| Relations: | Sir Hercules Langford, 1st Baronet (grandfather) |
Hercules Rowley (1679 – 19 September 1742) was an Anglo-Irish politician.
He was the only son of Sir John Rowley who was knighted for his services at the time of the Restoration and the former Mary Langford eldest daughter and heiress of Sir Hercules Langford, 1st Baronet. His sister was Lettice Rowley wife of Arthur Loftus, 3rd Viscount Loftus. (Anne Rowley wife of Sir Tristram Beresford, 1st Baronet, and Mary Rowley wife of John Clotworthy, 1st Viscount Massereene were daughters of the John Rowley who was the great-grandfather of Hercules Rowley.)
In 1661, his grandfather Hercules Langford bought Lynch's Castle (located on the Summerhill Demesne in County Meath) and many other townlands from The Rt Rev. Dr. Henry Jones, the Lord Bishop of Meath.[1]
Rowley was a Member of Parliament for County Londonderry in the Irish House of Commons between 1703 and his death in 1742.[2] He was the uncle, by marriage, of the politician Henry Maxwell, with whom he clashed over proposals in 1721 to establish the Bank of Ireland.[3] [4]
On 3 January 1705, Rowley was married to Frances Upton,[5] the sixth daughter of Arthur Upton of Castle Upton in County Antrium.[1] Together, they were the parents of:
Rowley died on 19 September 1742.[4]