Markham District High School (MDHS) is a public high school in the city of Markham, Ontario, Canada. Founded in 1858, it is a secular school. As of 2026, the school had approximately 1500 pupils enrolled.
- Country
- Canada
- Inception
- 1858
- Website
- http://www.markhamdistrict.hs.yrdsb.edu.on.ca/
