Catherine Aurelia Caouette (1833–1905), also known as Catherine-Aurélie du Précieux-Sang, was a Canadian nun, the founder of the Sisters Adorers of the Precious Blood.

Jean-Charles Prince, bishop of the diocese of St Hyacinthe, advised her to enter a teaching or nursing community but she did not feel this was her vocation.

[1] In 1859 she spoke with the bishop of Montreal, Ignace Bourget, who suggested that she found an order to venerate the blood of Christ.

His successor Joseph La Rocque did not initially support the scheme but eventually approved it and the new order was founded on 14 September 1861 as a group of four women living in Caouette's family home.

[1] The order grew: by 1866 there were 18 sisters and 9 novices, and by 1902 there were 10 further convents in Canada, the United States, and Cuba.