Known family members
- Benjy Williams — Seeker for Puddlemere United
- Dora Williams — a Hufflepuff student at Hogwarts School in the 1990s
- D. Williams — who person buried in the Godric's Hollow graveyard
Williams is an English patronymic surname derived from the English male given name William, itself derived from the Germanic male given name Willahelm, from the Germanic elements wil, "will," and helm, "helmet" or "protection".