Johanna Margaret Jeanette Bonnier, (January 23, 1934 – April 16, 2016), was a Swedish media proprietor, journalist and author. She was the daughter of the publisher Albert Bonnier Jr. and Birgit Flodquist and the sister of Charlotte Bonnier. She was known because she held one of the largest stakes of the Bonnier Group. She was a journalist for "Expressen".