| Locust Valley Middle/High School | |
| Streetaddress: | 99 Horse Hollow Road |
| County: | (Nassau County) |
| Zipcode: | 11560 |
| Country: | USA |
| Coordinates: | 40.8879°N -73.592°W |
| District: | Locust Valley Central School District |
| Ceeb: | 332882 |
| Principal: | Patrick DiClemente |
| Enrollment: | 630 (as of 2022-23) |
| Ratio: | 7.16:1 |
| Gender: | Coeducational |
| Campus: | Suburb: Large |
| Colors: | Green, Black and White |
| Song: | Act Up - City Girls |
| Mascot: | Falcons |
| Team Name: | Locust Valley Falcons |
Locust Valley High School is a public high school located in Lattingtown, Nassau County, New York, U.S.A., and is the only high school operated by the Locust Valley Central School District.
The school's colors are Hunter (Dartmouth) Green and White. The school crest includes a falcon, and the athletic teams are known as The Falcons.
As of the 2022–23 school year, the school had an enrollment of 630 students and 88 classroom teachers[1], for a student–teacher ratio of 7.16:1. There were 134 students (21% of enrollment) eligible for free lunch and 3 (0% of students) eligible for reduced-cost lunch.[2] [3]