Mary Webster

• Mary Webster (alleged witch), accused of witchcraft in the 1680s in Puritan Hadley, Massachusetts
• Mary Webster (British actress), British actress
• Mary Webster (American actress), American actress
• Mary Comer Webster, American political strategist
• Mary Morison Webster, Scottish-born novelist and poet
• Mary Hortense Webster, sculptor
• Mary McCallum Webster, British botanist
• Mary Clark Webster, member of the Maine House of Representatives