Nathaniel Sneyd (c. 1767 – 31 July 1833) was an Irish politician, landowner and businessman He was a Member of the Parliament of Ireland representing the Carrick constituency from 1794 to 1800 and was High Sheriff of Cavan in 1795. He briefly represented the Cavan County Parliament of Ireland constituency which was succeeded after the Union with Great Britain in 1800 by the Cavan Westminster constituency, which he represented from 1801 until 1826. In general election of 1806 he contested two constituencies for Parliament, winning both and choosing to represent Cavan over Enniskillen.