Nicholas Netterville, 5th Viscount Netterville

Nicholas Netterville, 5th Viscount Netterville (1708–1750) was an Irish peer, who is mainly remembered for having been tried and acquitted by his peers on a charge of murder.

He was the only son of John, 4th Viscount Netterville, and his wife Frances, daughter of Richard Parsons, 1st Viscount Rosse, and his wife Elizabeth Hamilton, daughter of Sir George Hamilton, Comte Hamilton, and Frances Jennings, later Duchess of Tyrconnell. He succeeded to the title in 1727. In 1731 he married Katherine Burton, daughter of Samuel Burton, High Sheriff of Carlow, and his first wife Anne Campbell, and had one son, John, and two daughters, Anne (died 1756), and Frances (died 1764). Frances married Dominick Blake, of the prominent landowning family from Castlegrove, County Galway, and had several children.

On 3 February 1743 the Irish House of Lords assembled to try Lord Netterville, who pleaded not guilty. The trial lasted for fifteen hours but was something of an anti-climax since the Crown explained that the two principal witnesses for the prosecution had died, and the law of evidence did not permit their depositions to be read in Court. In the circumstances, his peers had no hesitation in finding him "Not Guilty".

He died on 9 March 1750 and was succeeded in the title by his only son John, 6th Viscount Netterville, who is best remembered for building an impressive mansion, Dowth Hall. John died unmarried in 1826, and the title passed to a distant cousin, James Netterville.