Davies : Davis / Dafis / Dafydd / Dewi. The most common modern surname to derive from David. Welsh Americans often used Davis instead of Davies. The popular Welsh language equivalent is Dafydd whilst Dafis and Dewi are also a popular derivative of Dafydd.
Famous people with the Welsh surname Davies include:
David Davies Llandinam - A prominent Welsh industrialist and liberal politician who became a railway contractor and in due course a millionaire coal magnate and important figure in the industrialization of the Rhondda Valley. He founded the Parc and Maendy collieries, and constructed the international trading docks at Barry. He was also responsible for the construction of railways across rural mid Wales
Donald Watts Davies - Known as the father of the internet. He was the developer of packet switching which evolved into being the modern internet.
Bette Davies - Huge Hollywood star of the 40's and 50's.
Jefferson Davis - Soldier, politician, and first and only President of the Confederate States (now the USA)
Howel Davies - Welsh pirate who terrorised shipping in the Cape Verde and the Caribbean and who also launched the pirating career of Bartholomew Roberts - known as Barti Ddu or Black Bart.
Gerald Davies - One of the acknowledged greats of Welsh rugby.