Royston John Hughes, Baron Islwyn, DL (9 June 1925 – 19 December 2003) was a British Labour Party politician from Wales, and a trade union organiser.
After demobilisation in 1946, Hughes became a Labour Party member and moved to Coventry where he worked as a manager for the Standard Motor Company, where he obtained a degree from Ruskin College, Oxford and became an administrator for Standard Motor from 1957 until 1966.
In his maiden speech, he praised the current government for providing pensioners with fuel benefits.
He also sponsored a bill to protect badgers in 1991, and was an honorary member of several football and cricket teams.
On 25 October 1997 Hughes was created a life peer taking the title Baron Islwyn, of Casnewydd in the County of Gwent.