Grenville Christian College is a former private boarding school located in the rural community of Maitland, some 8 km (5 mi) northeast of Brockville, Ontario, on the bank of the St. Lawrence River.

[2] The St. Mary's College campus was purchased in 1969 by a group called Berean Christian Schools, who envisioned using the facility for training missionaries.

After 37 years, Grenville Christian College announced its closure on July 30, 2007, citing declining enrollment and unspecified financial pressures.

[7] In 1993, WCVB-TV (based in Boston, Massachusetts) aired a two night Chronicle special on the Community of Jesus, which mentioned that parents in the group sent their child to this school.

[12] Previously, there had been allegations of student abuse and cult practices at the school that were ultimately dismissed by the Anglican Diocese of Ontario.

[21] Since the school's closing, some former students have claimed punishments by silence and separation ("Discipline"), a form of internal suspension, as well as being woken in the middle of the night by having bright light shone in their faces and being interrogated about their alleged "sins".

In February 2020, after a trial that spanned two months, former students won their class action lawsuit against the college, which was ordered to pay punitive damages.