Gwilym ap Griffith | |
|---|---|
| Born | c. late 14th century |
| Died | 1431 |
| Occupation | Landowner |
| Spouse(s) | Morfudd ferch Goronwy Joan |
Gwilym ap Griffith (died 1431), also known as Gwilym ap Gruffydd, was a Welsh landowner. He briefly lent his support to Owain Glyndŵr in the Glyndŵr Rising. When his loyalty returned to the Crown, he was granted the lands of number of Glyndŵr supporters and by the end of his life had ownership of the majority of the lands previously held by the Tudors of Penmynydd.