Hywel ap Rhys

Hywel ap Rhys is a Welsh name that may refer to:

Hywel ap Rhys (Glywysing), king of part or all of Glywysing
Hywel ap Rhys, later known as Hywel Sais, son of Rhys ap Gruffydd
Hywel ap Rhys Gryg, son of Rhys Gryg