William de Vesci or Vescy was a prominent 13th-century noble. He was a son of William de Vesci and his second wife Lady Agnes de Ferrers, daughter of William de Ferrers, 5th Earl of Derby, and his first wife Sibyl Marshal.
- Position held
- Lord Lieutenant of Ireland
- Born
- September 19, 1245
- Died
- July 19, 1297, 1297
