This is a list of names in which the usage is Welsh; and the categories include surnames.
Alwyn m WelshFrom the name of the River Alwen in northern Wales (a tributary of the River Dee).
Delwyn m WelshFrom Welsh
del "pretty" combined with
gwyn "white, blessed". It has been used as a given name since the start of the 20th century.
Ellis m & f English, WelshFrom an English surname that was derived from the given name
Elis, a medieval vernacular form of
Elias. This name has also functioned as an Anglicized form of Welsh
Elisedd.
Glyndwr m WelshGiven in honour of Owain Glyndwr (or
Glyn Dŵr, Anglicized as
Glendower), a 14th-century Welsh patriot who led a revolt against England. His byname means
"valley water", and was probably inspired by the name of his estate at Glyndyfrdwy (meaning "valley of the River
Dee").
Morgan 1 m & f Welsh, English, FrenchFrom the Old Welsh masculine name
Morcant, which was possibly derived from Welsh
mor "sea" and
cant "circle". Since the 1980s in America
Morgan has been more common for girls than boys, perhaps due to stories of
Morgan le Fay or the fame of actress Morgan Fairchild (1950-).
Reese m & f Welsh, EnglishAnglicized form of
Rhys. It is also used as a feminine name, popularized by the American actress Reese Witherspoon (1976-).
Tudor 1 m WelshAnglicized form of the medieval Welsh name
Tudur, possibly from a hypothetical Celtic name *
Toutorīxs meaning "ruler of the people" (cognate with
Theodoric). As a surname it was borne by five monarchs of England beginning with Henry VII in the 15th century. These monarchs were descended from Owain ap Maredudd ap Tudur, a Welsh nobleman.
Vaughan m Welsh, EnglishFrom a Welsh surname that was derived from
bychan (mutated to
fychan) meaning
"little".