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.
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.
[2] Rowley was a Member of Parliament for County Londonderry in the Irish House of Commons between 1703 and his death in 1742.
[3] 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.