Agnes Maule Machar (23 January 1837 – 24 January 1927) was a Canadian author, poet and social reformer. Machar's father, John Machar immigrated to Canada in 1827, and married Margaret Sim (a fellow Scottish immigrant) in Montreal in 1832. The couple established themselves in Kingston, Ontario (then part of Upper Canada), where her father was the pastor of St. Andrew's Church, and second principal of Queen's University (1846–1853). The couple's first child died in infancy; Agnes was born in 1837; and her brother, John Maule, in 1841. Machar died in Kingston in 1927.