Olimpia Ludovisi (1656 – 27 November 1700) was the ruling Princess of Piombino in 1700. She was the eldest daughter of Niccolò Ludovisi and his third wife Costanza Pamphili, sister of Vatican cardinal Camillo Pamphili. Through her mother she was the grand-niece of Pope Innocent X and through her father she was the grand-niece of Pope Gregory XV. Her paternal grandparents were Orazio Ludovisi and his wife . Her cousin was Olimpia Aldobrandini.