Is the sir name Davis of Welsh origin?
I am named Davis, so this is something I looked into. As I understand it, Davis sometimes is a simplification of Davies, a common Welsh surname which in the Middle Ages meant son of David. Davis has sometimes been a shortened form of Davidson, which is English. There have been so many migrants to England over the centuries that many people named Davis and Davies that although people in England anad Wales usually assume Davis and Davies are Welsh, having that name is not a guarantee that your father’s father’s father’s father’s father’s father’s father (if you catch my meaning) came from Wales.