Robert Arthur Peel (May 6, 1909 – January 8, 1992) was a Christian Science historian and writer on religious and ecumenical topics.
A Christian Scientist for over 70 years, Peel wrote editorials for the Christian Science Monitor, a publication owned by the Church of Christ, Scientist.
He was also a counsellor for the church's Committee on Publication, set up by Mary Baker Eddy (1821–1910), the religion's founder, to protect her own and the church's reputation.Peel is best known for his three-volume biography, Mary Baker Eddy: The Years of Discovery (1966), Mary Baker Eddy: The Years of Trial (1971), and Mary Baker Eddy: The Years of Authority (1977).