Mariana "Marianne" Maximiliana Christiana Carolina Lovisa Ehrenström, née Pollet (9 December 1773 – 4 January 1867), was a Swedish writer, singer, painter, pianist, culture personality, memoir writer and lady-in-waiting. She was a member of the Academy of the Free Arts and an honorary member of the Royal Swedish Academy of Music. She is foremost known for her memoirs, which are regarded as a valuable historical documentation, especially about the contemporary cultural life.