| East Northumberland Secondary School | |
| Address: | 71 Dundas Street |
| City: | Brighton |
| Province: | Ontario |
| Postcode: | K0K 1H0 |
| Country: | Canada |
| Motto: | In Sinc, Vigno, Emus |
| Motto Translation: | Tradition, Excellence, Heart |
| School Board: | Kawartha Pine Ridge District School Board |
| Principal: | Karin Mackenzie-Russell |
| Grades Label: | Grades |
| Grades: | 9 to 12 |
| Enrolment: | 950 |
| Enrolment As Of: | 2018 |
| Colours: | Blue and Gold |
| Mascot: | The Blue Dragon |
| Team Name: | Blue Dragons |
East Northumberland Secondary School (ENSS) is a secondary school in Brighton, Ontario, Canada.
The school was the topic of a song performed by Miley Cyrus called "East Northumberland High", written by ENSS's own Samantha Moore.
The school offers the following sports; Curling, Soccer, Basketball, Volleyball, Badminton, Rugby, Cross Country, and Track and Field. For 27 years straight ENSS has captured the Bay of Quinte title.
Over the years, ENSS has been known as a "Green" school, with regular garbage clean-ups, tree-plantings, and a heavily involved Environmental Club.[1] ENSS installed a wind turbine in June 2009,[2] generating power and reducing ENSS's carbon footprint. In the summer of 2011, ENSS installed solar panels on the roof of the school.