Mary Somerset may refer to:

• St Mary Somerset, church in the City of London
• Mary Somerset, Duchess of Beaufort
• Lady Mary Somerset of Worcester
• Mary Somerset, Duchess of Beaufort (1630–1715)
• Mary FitzRoy, Duchess of Richmond and Somerset

• Tellier
• Tellieres-le-Plessis
• Telligent Analytics
• Telligman
• Telli Hasan Pasha
• Tellimagrandin II
• Tellina carpenteri
• Telling Lies in America (film)
• Telling Right From Wrong
• Telling secrets to strangers
• Tellings Golden Miller
• Telling Tales (album)
• Telling Whoppers
• Telling You
• Tellini
• Tellini (disambiguation)
• Tellin' Stories (song)
• Tellippalai
• Tellippalai Union College
• Tell Ishchali
• Tellison
• Tell It Like It Was
• Tell It the Way It Is! (Paul Gonsalves)
• Tell it to my balls
• Tell It to My Heart (album)