William Mellor
William Mellor could refer to:
- Bill Mellor, American baseball player
- Bill Mellor (footballer),, English football goalkeeper
- Chip Mellor , American lawyer and political activist
- Will Mellor,
- William Mellor (journalist), British journalist and left-wing political activist
- William Mellor (footballer), English footballer
- William C. Mellor, American cinematographer
- William [Frederick Mellor], English missionary