Louisa Keilhau

Louise Keilhau (1860–1927) was a Norwegian teacher and peace activist.

Keilhau was credited with inspiring the Norwegian Red Cross to take an active role to relieve suffering during the First World War. She was the only woman on the Red Cross's executive board and, with the support of other women, encouraged the Norwegian Red Cross to look up from its domestic problems. Delegates were called from around the world although many had difficulties attending because the peace efforts were "only" of women and hostilities made travel difficult. At the conference, she proposed resolution 28 that "We women, in International Congress assembled, protest against the madness and horror of war, involving as it does a reckless sacrifice of human life and the destruction of so much that humanity has laboured through centuries to build up."

Personal life She was the mother of economist and historian Wilhelm Keilhau.