15 prior to 1999[1]) administers public school education for students in a large area of central Ontario, Canada, including the municipalities of the City of Kawartha Lakes, Haliburton County, and the District Municipality of Muskoka.

[3] The Trillium Lakelands District School Board was involved in a landmark legal decision in Ontario, Canada, regarding the responsibility of school boards for sexual abuse of students.

On June 30, 2021, Justice Salmers of the Ontario Superior Court of Justice found the Trillium Lakelands District School Board vicariously liable in a historical sexual abuse lawsuit.

The case related to the sexual abuse of a student by a former teacher, Royce Galon Willamson, dating back to the 1980s.

The school board alone was ordered to pay over $500,000 to compensate the victim.