F. A. Forbes (16 March 1869 – 1936) was the nom de plume of Mother Frances Alice Monica Forbes, RSCJ, a member of the Society of the Sacred Heart from Scotland and a religious author.
She was born in 1869 as Alice Forbes into a Presbyterian family. Her mother died when she was a child. In 1900 she became a Roman Catholic. Only a few months later, she entered the Society of the Sacred Heart, as a 31-year-old postulant.
She wrote numerous books, including brief biographies of Saint Ignatius Loyola, Saint John Bosco, Saint Teresa of Ávila, Saint Columba, Saint Monica, Saint Athanasius, Saint Catherine of Siena, Saint Benedict, Saint Hugh of Lincoln, Saint Vincent de Paul, and, most famously, Pope Saint Pius X. She died in 1936.