Sister Anne Montgomery RSCJ (20 November 1926 – 27 August 2012) was an American non-violent activist, educator, nun, and poet who was part of the Plowshares movement.

She attended Eden Hall Academy of the Sacred Heart in Torresdale, Pennsylvania and Manhattanville College, graduating with a bachelor's and master's degree.

During the period of her novitiate she received news of her brother's death in a military training exercise for jet fighter planes.

The movement included activists such as Susan Crane and often consisted of members calling for the abolition of nuclear weapons.

In 2005, she participated in a 70-mile walk and a four-day fast and vigil with the organization witness against torture, which worked toward the closing of the Guantanamo Naval Base.

[1] A book of her poetry, ARISE AND WITNESS: Poems by Anne Montgomery, RSCJ, About Faith, Prison, War Zones and Nonviolent Resistance was published in September of 2024 by her former co-editor, Arthur Laffin, with Carole Sargent.

"[10] Cavalieri writes that "This posthumous collection of poems by activist Anne Montgomery illuminates the heart of a woman who gave her every moment in service to impede ugliness, and to do God’s work.

"[9] Every living member of the original Plowshares 8 and some members of the Kings Bay Plowshares 7 contributed to it, including (alphabetically) Jackie Allen-Douçot, Frida Berrigan, Jim Douglass and Shelley Douglass, Clare Grady, Dean Hammer, Kathy Kelly, and Steve Kelly SJ.