Stephanie Freifrau von und zu Guttenberg (born 24 November 1976 in Munich), née Stephanie Gräfin von Bismarck-Schönhausen (Countess of Bismarck-Schönhausen), is a German activist against child abuse, and the President of Innocence in Danger, a group which wants Internet censorship of child pornography. She has also co-written a book about these topics.