It doesn't appear to be a Welsh name and would not have a Welsh version.
The Welsh translation of "name" is "enw".
Freddy Welsh's birth name is Fred A. Welsh.
Mikey Welsh's birth name is Michael Welsh.
Ronnie Welsh's birth name is Walter Ronald Welsh.
Susan Welsh's birth name is Welsh, Susan E..
The Welsh word for "Welsh" is Cymraeg :)
The Welsh name for November is Tachwedd.
No Welsh version of the name.
Marcroes is the Welsh name.
Despite its somewhat Welsh appearance, it is an English name. The name would be the same in Welsh or English.
Welsh doesn't have equivalents for every English name and usually they are left in the original spelling.Elen is a Welsh name.
Chwefror is the Welsh name for February.