Details
- Said to be the same as
- William, Wiliam, Gwyllym, Guilherme, Guillem, Vilém, Will, Guillermo, Willem, Bill, Guillaume, Guillén
- Caverphone
- KWLM11
- Cologne phonetics
- 4356
- family name identical to this given name
- Gwilym
- language of work or name
- Welsh
- native label
- Gwilym
- Soundex
- G450
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