Admiral of the Fleet James Steuart M.P., (1678 – 30 March 1757) was a Royal Navy officer. After his father died at the Siege of Derry, Steuart and his siblings were brought up by their uncle and aunt, who were wealthy and politically well connected. Steuart commanded the fourth-rate during the War of the Spanish Succession and then commanded the sixth-rate HMS Aldborough off the Scottish coast during the Jacobite rising.