This is a list of names in which the usage is Welsh; and the meaning contains the keywords the or moon.
Cadwaladr m WelshFrom Old Welsh
Catgualatr (also recorded in many other spellings) meaning
"leader of the battle", from
cat "battle" and
gwaladr "leader". This was the name of a 7th-century king of Gwynedd. According to Geoffrey of Monmouth he was the last king of all of the Britons. This name was also borne by a 7th-century Welsh saint.
Emlyn m WelshFrom the name of an ancient region of southwestern Wales, its name meaning
"around the valley" from Welsh
am "around" and
glyn "valley". It has also been suggested that this name is a Welsh form of Latin
Aemilianus (see
Emiliano), though this appears to be unfounded.