Baron Merthyr

Baron Merthyr, of Senghenydd in the County of Glamorgan,[1] is a title in the Peerage of the United Kingdom.

It was created in 1911 for the Welsh coal mining magnate Sir William Lewis, 1st Baronet.

He disclaimed the peerage for life on 26 April 1977,[3] three weeks after succeeding his father.

Robin Lewis, fourth son of the third Baron, was appointed Lord Lieutenant of Dyfed in December 2006, although this was not officially reported in the London Gazette until September 2007.

The heir presumptive is the present holder's uncle, Peter Herbert Lewis (born 1937).